• Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
  • Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)

Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac (USA-19HS)

SKU:HA00VYJRY
Sale price
Dhs. 240.00
Regular price
Dhs. 400.00
Unit price
per 
( 40% off )
Quantity:
Expected Delivery: 21-28 days

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  • Serial adapter allows a serial device to be connected to a USB computer
  • Plug-and-play convenience:DB9 serial port is seen as a COM port by your computer, and is available for use by any program that accesses COM ports
  • No need for an external power adapter:draws power directly from your computer via the USB connection
  • DB9 serial port supports data transfer rates up to 230 Kbps:twice the speed of a standard built-in serial port
  • LED shows adapter status and data activity at a glance

Customer Reviews

Ultimate device for adding serial ports to a computer Yes, there are a million different USB-to-serial port adapters out there. But this is the only one I've found that always works, all of the time, no matter what I'm plugging it into.Many of the older (bargain) adapters out there have trouble or don't work at all with 64-bit versions of Windows. The USA-19HS always works.The software that KeySpan makes available for configuring and monitoring traffic is also very handy for troubleshooting connections. You can see exactly what is happening -- what data is being transmitted and received, and what the various handshaking lines are doing. I haven't seen any other product that will do that.It may be a few dollars more than other adapters, but in my opinion it is totally worth it for its reliability and diagnostic capabilities. I've purchased several of these for those very reasons. 5These are truly worth the money I am an astronomer and use these Keyspans to link various gear to my computer. They have never failed and quietly perform very dependably. I would recommend these serial adapter to everyone who needs one. These are used to link via network cable and USB cable. When the connections are all good, the unit constantly displays a flashing green light to indicate a good connection. I have about 4 of these. All are working flawlessly. 5Does not work well with battery powered devices. I bought two of these after having several older no-name prolific based devices stop working with the release of Windows 10. I have found this works great working with a computer, or other devices that have their negative side of their power supply tied to the AC neutral. Every device I tried to connect the serial lines to that were battery powered did not work. I then grabbed an off brand device and it worked fine. So if the the signal ground wire, pin 5 is not at the same potential as the as USB port data gnd, this unit will not work...well the two I have did not work. So if you are planning on connection to battery powered devices, find another one. Otherwise you will probably not have an issue like most people. 1Perfect Solution for My Update Effortless connection for my old Serial/Parallel port vinyl plotter. I have a 2000 model year Vinyl Express 32" vinyl cutter that that had only a serial port connection. With this adapter, I was able to upgrade my machine to USB connection on a Windows 10 laptop. It was very simple once I updated my old Win 2000 software, the Vinyl Express software and then added this port converter so they could talk. I didn't need anything more, even the CD was included with a driver that worked perfectly. Don't give up on old serial port equipment if it still works well. This is a reliable and inexpensive solution. The connector takes a standard USB cable connection just like your printer has. A 3' cable is included but since the adapter is independent of the cable, not molded together into one piece, you can use any standard USB cable to achieve the length you need. Highly Recommend! 5Works Flawlessly! I have a vinyl cutter that was designed to work with Win98 via a serial port. After many years of use the hard drive went down in my old laptop. I updated the software in order to get a later version of Windows to see the USB security key that unlocked the vinyl software. I had to adapt the serial port on the Vinyl cutter to a USB port because my new Laptop does not support a serial port. After reading many reviews on various adapters I decided to go with the Keyspan - Tripp Lite USA-19HS. I installed the software then attached the adapter to the computer USB port as per instructions. Windows found and installed the software. Next I used the Keyspan Serial Assistant (located under the Start menu after installation) to identify the com port to which it was assigned (com 4 in my case). I then started my program set the com port to match Keyspan Adapter and it works perfectly. My vinyl cutter is approximately 15 years old and I can t imagine the Keyspan adapter not working flawlessly with newer technology as well. 5The best USB serial port adapter for use with control system hardware (Please see my update at the end of this review before considering the purchase of this adapter)I've been using the Keyspan USA-19HS for years. The first one was purchased after reading recommendations from several control system experts, and I haven't been disappointed. Rockwell Automation sells their own version of a USB serial port adapter (PN 9300-USBS), but it's about $130. Don't bother. The Keyspan is inexpensive and has proven to be 100% compatible with everything I've needed to connect to via a serial cable.I've used it with laptops and desktops running Windows 98SE, Windows XP and Windows 7. I've used it on SLC 5/xx series processors, ControlLogix 5000 processors, Siemens/TI 505 series processors, Keyence laser measurement equipment, modems, serial printers, barcode scanners, Reliance and Rockwell/Allen-Bradley drives, and just about everything else. Never a problem. It works with straight serial cables, null modem cables, and every type of serial adapter I've thrown at it. The Keyspan USA-19HS is the cheapest piece of control system communication hardware that I own, and it's probably the most-used. It has never let me down.Since I first started using the Keyspan adapter, I've bought over a dozen more for service techs, co-workers and even a couple of bosses. The Keyspan is extremely configurable, fast, reliable, durable and easy to use. The Keyspan adapter comes with a driver CD and a USB cable and takes just a few minutes to set up. I keep one in my laptop bag at all times.UPDATE 4/5/12: it appears that Tripp-Lite has made a few changes since they took over the Keyspan line. Among the changes was a decision to use a cheaper USB socket. From the outside, it looks almost the same. The only notable difference is a lack of molded numbers (1, 2, 3 and 4) on the end of the plastic tab in the middle of the port. Unfortunately, the cheaper USB socket doesn't retain the cable connector as well as the older ones did. The weaker spring conductors allow the cable to be pulled most of the way out of the socket, resulting in a lost connection and possibly a BSOD (blue screen of death).I took a couple of the older Keyspan adapters (no Tripp-Lite logo on the housing) and a couple of the newer Keyspan adapters (with the Tripp-Lite logo on the housing), opened the housings and compared them. The differences I saw between old and new were minor: notably a different PCB manufacturer's logo and a couple of chips that had changed brands. And the USB type B port. The old has a partial back shell (you can see the white plastic on the back of the port), while the new has a full back shell (can't see the plastic in back).The few cents that Tripp-Lite saved by using a cheaper socket isn't worth it. Whereas the old Keyspans would easily support the weight of the adapter + a 10 ft. coiled-up serial cable, the new Keyspans cannot. The new ones can't support the weight and allow the USB cable to pull partway out of the port. I tested 3 of the new Keyspan adapters and they all performed the same: almost no load-bearing capability at all.Since the adapters still work fine except for the USB port, I simply desoldered the cheap-o port from each of the new adapters and replaced it with an FCI port (FCI PN 61729-1011BLF -- 54 cents each). No more problems. Most users probably won't be able replace the port, so a quick (if not awkward and/or ugly) fix is to either glue the USB cable into the port or use tape or a heavy rubber band to retain the cable.Tripp-Lite, shame on you for ruining a perfectly good adapter to save a few pennies. I have reduced the adapter's 5 star rating to 2 stars based on the poor quality of the new USB port. Like the old Baskin-Robbins saying goes, "There is hardly anything in the world that someone cannot make a little worse and sell a little cheaper, and the people who consider price alone are that man's lawful prey."UPDATE 10/11/12: A coworker bought a half dozen new Keyspan USA-19HS adapters today, so I wasted no time in testing them out to see if the USB port problem was fixed. I tested all 6 of the adapters and was happy to see that none suffered from loose USB ports. The ports don't have any numbers (1, 2, 3 and 4) molded on the end of the plastic tab in the middle of the port, so I'm guessing they're not anything special, but they seem to hold onto the USB cable quite well. I only hope Tripp-Lite has learned a lesson about trusting others to adhere to high quality standards based on faith alone. I have updated the adapter's rating from 2 stars to 4 stars based on seeing and testing this batch of adapters. 4Worked on Dolby CP650 DMA8 DMA8+ Happy to find a USB to serial adapter that works with some old Audio and Video gear without issue. Do wish it was a bit more stream lined like the other USB to Serial adapters I have (the one I've used before were just a 36 in wired USB A Male to thumb screw DB9 Male) The casing of this out of the box requires you to use an additional DB9 cable to connect to the device. I did remove the threaded hex screws and cut the plastic surround back so I can use this like I did with my previous cable (less having thumb screws to screw into the device and needing to keep a USB cable with it) So, it will work for my temporary connection applications. 4A must-have for programming (or pulling programs from) legacy PLCs. Want a reliable means of connecting to industrial automation devices that utilize an RS-232 port without paying the "Allen-Bradley markup" for a 9300-USBS? Read on!I purchased this item for the sole purpose of retrofitting an Allen-Bradley MicroLogix 1400 to a machine still running on a 1980's-era SLC 150. (Please... Don't ask.) I basically needed to pull the program from the venerable 150 and transliterate the instructions into RSLogix for the 1400. I won't bore you with the "joy" that is reverse-engineering a program line by painstaking line in a utility written for DOS. XD What I WILL tell you is that when configured properly in Windows Device Manager (i.e. assigned to COM1), the ancient PCIS software recognized the USA-19HS as a "real" RS-232 port which worked flawlessly at 19.2k baud in DOSBox, which was a small miracle in and of itself considering this particular PLC was so overdue for retirement that it "forgot" its program and faulted the very minute I de-energized the machine and performed LOTO. -.- I am also pleased to report that this particular USB to Serial converter works equally well with the MicroLogix 1400 and autoconfigures like a dream in RSLinx, although the A-B software/hardware limits practical speeds to 19.2k baud maximum.The adapter itself is a remarkably lightweight piece of kit that you can easily slip into your laptop bag or pocket, as the PCB is housed in a translucent smoke-colored plastic that I wish was a little sturdier, but I'll elaborate more on that later. The tapered side of the adapter has a snug-fitting USB B female connector which is more than adequate to hold the weight of the adapter itself, while the wider side contains the obligatory 9-pin Male RS-232 port with securely attached posts that I've yet to see come unscrewed in use. The clamshell package also comes with a software installation disk that you MUST run before plugging the USA-19HS into your laptop or PC in addition to a USB A to B cord of decent length and quality. However, I highly recommend that you get a coiled one instead (which, thankfully, Tripp-Lite also makes) lest you do what I did and accidentally stretch the cord to the point where the adapter pulls free, falls onto a concrete floor, and bounces/skitters quite a few feet away. x.x I can't imagine this adapter ever breaking in "normal" use, but in an industrial application, you definitely want to be more careful with it. Despite the housing only being held together by wishful thinking after my admittedly careless handling (as a few tabs broke off inside the unit), it continued to work without any issues whatsoever. I'd say this was pretty impressive for an inexpensive piece of equipment that you'd not expect to survive such treatment.The bright side to this story is that Tripp-Lite's customer service was extremely helpful and accommodating when I called them to explain what had happened, and that I was using it for my job. Without any further questions much less hassle, they told me they'd just send a new unit directly to my workplace free of charge. Although they did caution me not to make a habit of submitting future warranty claims, I'm still very pleased that they stand by their products so much for commercial/industrial users.Were it not for the plastic Tripp-Lite uses in the unit's housing, I'd have given the USA-19HS five stars easily. Granted, the aforementioned 9300-USBS is much more ruggedized and thus better suited for industrial use, but it also uses an FTDI chipset rather than the Texas Instruments chipset of the former and comes with a far more hefty price tag to boot. All said and done, I'd rather save my money and just treat the $25 Keyspan with kid gloves. Durability gripes aside, it's an indispensible tool that shall always reside in my laptop bag along with my 1747-UIC and the 1745-PCC convertor that I'll (hopefully) never need again. XD 4Not Frustrating like the rest USB Adapters are frustrating. Some work, some don't, and some only work some of the time.I've had a variety of USB-Serial adapters, and the mixed bag of results, makes this one a refreshing change. It came with software, but I didn't need it. Just plug into the USB port, and it downloaded the proper driver straight from Windows Update. It just worked!It's a sturdy construction, and comes with the USB cable. The cable isn't incredibly long, so if you need to reach, you might bring another for longer distances. There is a light on it to let you know when it's connected, which is very handy, and the port that is created on the computer shows the Keyspan, so you don't need to pick trial and error until you have the correct port. This is powered by the USB port, so you do not need any kind of additional battery.Very happy with this, and I strongly recommend this to anyone who has a need for a USB to Serial Port adapter. 5Worth the extra cost compared to cheaper units I have used several different cheaper adapters that use the common Prolific chip and drivers. All of them have had spotty results, compatibility issues with various versions of Windows and MacOS. However the Keyspan USA-19HS has always worked perfectly for me, requiring no driver installation on Windows XP, 7, 8 and 8.1. Even though this unit is a little more expensive that the others, I highly recommend it.One of the cheaper adapters I purchased would only work with drivers that were designed for Windows Vista, and even though I was able to make it work by installing that driver on my Win 7 box, as soon as I unplugged it and plugged it in again, the Vista driver was automatically over-written by the Win 7 driver, and the adapter stopped working.One serial device I own (a security alarm controller) came with the recommendation to use this Keyspan adapter for USB connections, and I have found that this is completely true. No other adapter works with that device.An additional benefit of the Keyspan device is that the USB cable unplugs from the adapter itself - using a standard USB cable that can be obtained in many different lengths. This can be a big help in managing cabling between the adapter and the computer. 5
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Description
  • Serial adapter allows a serial device to be connected to a USB computer
  • Plug-and-play convenience:DB9 serial port is seen as a COM port by your computer, and is available for use by any program that accesses COM ports
  • No need for an external power adapter:draws power directly from your computer via the USB connection
  • DB9 serial port supports data transfer rates up to 230 Kbps:twice the speed of a standard built-in serial port
  • LED shows adapter status and data activity at a glance
Reviews

Customer Reviews

Ultimate device for adding serial ports to a computer Yes, there are a million different USB-to-serial port adapters out there. But this is the only one I've found that always works, all of the time, no matter what I'm plugging it into.Many of the older (bargain) adapters out there have trouble or don't work at all with 64-bit versions of Windows. The USA-19HS always works.The software that KeySpan makes available for configuring and monitoring traffic is also very handy for troubleshooting connections. You can see exactly what is happening -- what data is being transmitted and received, and what the various handshaking lines are doing. I haven't seen any other product that will do that.It may be a few dollars more than other adapters, but in my opinion it is totally worth it for its reliability and diagnostic capabilities. I've purchased several of these for those very reasons. 5These are truly worth the money I am an astronomer and use these Keyspans to link various gear to my computer. They have never failed and quietly perform very dependably. I would recommend these serial adapter to everyone who needs one. These are used to link via network cable and USB cable. When the connections are all good, the unit constantly displays a flashing green light to indicate a good connection. I have about 4 of these. All are working flawlessly. 5Does not work well with battery powered devices. I bought two of these after having several older no-name prolific based devices stop working with the release of Windows 10. I have found this works great working with a computer, or other devices that have their negative side of their power supply tied to the AC neutral. Every device I tried to connect the serial lines to that were battery powered did not work. I then grabbed an off brand device and it worked fine. So if the the signal ground wire, pin 5 is not at the same potential as the as USB port data gnd, this unit will not work...well the two I have did not work. So if you are planning on connection to battery powered devices, find another one. Otherwise you will probably not have an issue like most people. 1Perfect Solution for My Update Effortless connection for my old Serial/Parallel port vinyl plotter. I have a 2000 model year Vinyl Express 32" vinyl cutter that that had only a serial port connection. With this adapter, I was able to upgrade my machine to USB connection on a Windows 10 laptop. It was very simple once I updated my old Win 2000 software, the Vinyl Express software and then added this port converter so they could talk. I didn't need anything more, even the CD was included with a driver that worked perfectly. Don't give up on old serial port equipment if it still works well. This is a reliable and inexpensive solution. The connector takes a standard USB cable connection just like your printer has. A 3' cable is included but since the adapter is independent of the cable, not molded together into one piece, you can use any standard USB cable to achieve the length you need. Highly Recommend! 5Works Flawlessly! I have a vinyl cutter that was designed to work with Win98 via a serial port. After many years of use the hard drive went down in my old laptop. I updated the software in order to get a later version of Windows to see the USB security key that unlocked the vinyl software. I had to adapt the serial port on the Vinyl cutter to a USB port because my new Laptop does not support a serial port. After reading many reviews on various adapters I decided to go with the Keyspan - Tripp Lite USA-19HS. I installed the software then attached the adapter to the computer USB port as per instructions. Windows found and installed the software. Next I used the Keyspan Serial Assistant (located under the Start menu after installation) to identify the com port to which it was assigned (com 4 in my case). I then started my program set the com port to match Keyspan Adapter and it works perfectly. My vinyl cutter is approximately 15 years old and I can t imagine the Keyspan adapter not working flawlessly with newer technology as well. 5The best USB serial port adapter for use with control system hardware (Please see my update at the end of this review before considering the purchase of this adapter)I've been using the Keyspan USA-19HS for years. The first one was purchased after reading recommendations from several control system experts, and I haven't been disappointed. Rockwell Automation sells their own version of a USB serial port adapter (PN 9300-USBS), but it's about $130. Don't bother. The Keyspan is inexpensive and has proven to be 100% compatible with everything I've needed to connect to via a serial cable.I've used it with laptops and desktops running Windows 98SE, Windows XP and Windows 7. I've used it on SLC 5/xx series processors, ControlLogix 5000 processors, Siemens/TI 505 series processors, Keyence laser measurement equipment, modems, serial printers, barcode scanners, Reliance and Rockwell/Allen-Bradley drives, and just about everything else. Never a problem. It works with straight serial cables, null modem cables, and every type of serial adapter I've thrown at it. The Keyspan USA-19HS is the cheapest piece of control system communication hardware that I own, and it's probably the most-used. It has never let me down.Since I first started using the Keyspan adapter, I've bought over a dozen more for service techs, co-workers and even a couple of bosses. The Keyspan is extremely configurable, fast, reliable, durable and easy to use. The Keyspan adapter comes with a driver CD and a USB cable and takes just a few minutes to set up. I keep one in my laptop bag at all times.UPDATE 4/5/12: it appears that Tripp-Lite has made a few changes since they took over the Keyspan line. Among the changes was a decision to use a cheaper USB socket. From the outside, it looks almost the same. The only notable difference is a lack of molded numbers (1, 2, 3 and 4) on the end of the plastic tab in the middle of the port. Unfortunately, the cheaper USB socket doesn't retain the cable connector as well as the older ones did. The weaker spring conductors allow the cable to be pulled most of the way out of the socket, resulting in a lost connection and possibly a BSOD (blue screen of death).I took a couple of the older Keyspan adapters (no Tripp-Lite logo on the housing) and a couple of the newer Keyspan adapters (with the Tripp-Lite logo on the housing), opened the housings and compared them. The differences I saw between old and new were minor: notably a different PCB manufacturer's logo and a couple of chips that had changed brands. And the USB type B port. The old has a partial back shell (you can see the white plastic on the back of the port), while the new has a full back shell (can't see the plastic in back).The few cents that Tripp-Lite saved by using a cheaper socket isn't worth it. Whereas the old Keyspans would easily support the weight of the adapter + a 10 ft. coiled-up serial cable, the new Keyspans cannot. The new ones can't support the weight and allow the USB cable to pull partway out of the port. I tested 3 of the new Keyspan adapters and they all performed the same: almost no load-bearing capability at all.Since the adapters still work fine except for the USB port, I simply desoldered the cheap-o port from each of the new adapters and replaced it with an FCI port (FCI PN 61729-1011BLF -- 54 cents each). No more problems. Most users probably won't be able replace the port, so a quick (if not awkward and/or ugly) fix is to either glue the USB cable into the port or use tape or a heavy rubber band to retain the cable.Tripp-Lite, shame on you for ruining a perfectly good adapter to save a few pennies. I have reduced the adapter's 5 star rating to 2 stars based on the poor quality of the new USB port. Like the old Baskin-Robbins saying goes, "There is hardly anything in the world that someone cannot make a little worse and sell a little cheaper, and the people who consider price alone are that man's lawful prey."UPDATE 10/11/12: A coworker bought a half dozen new Keyspan USA-19HS adapters today, so I wasted no time in testing them out to see if the USB port problem was fixed. I tested all 6 of the adapters and was happy to see that none suffered from loose USB ports. The ports don't have any numbers (1, 2, 3 and 4) molded on the end of the plastic tab in the middle of the port, so I'm guessing they're not anything special, but they seem to hold onto the USB cable quite well. I only hope Tripp-Lite has learned a lesson about trusting others to adhere to high quality standards based on faith alone. I have updated the adapter's rating from 2 stars to 4 stars based on seeing and testing this batch of adapters. 4Worked on Dolby CP650 DMA8 DMA8+ Happy to find a USB to serial adapter that works with some old Audio and Video gear without issue. Do wish it was a bit more stream lined like the other USB to Serial adapters I have (the one I've used before were just a 36 in wired USB A Male to thumb screw DB9 Male) The casing of this out of the box requires you to use an additional DB9 cable to connect to the device. I did remove the threaded hex screws and cut the plastic surround back so I can use this like I did with my previous cable (less having thumb screws to screw into the device and needing to keep a USB cable with it) So, it will work for my temporary connection applications. 4A must-have for programming (or pulling programs from) legacy PLCs. Want a reliable means of connecting to industrial automation devices that utilize an RS-232 port without paying the "Allen-Bradley markup" for a 9300-USBS? Read on!I purchased this item for the sole purpose of retrofitting an Allen-Bradley MicroLogix 1400 to a machine still running on a 1980's-era SLC 150. (Please... Don't ask.) I basically needed to pull the program from the venerable 150 and transliterate the instructions into RSLogix for the 1400. I won't bore you with the "joy" that is reverse-engineering a program line by painstaking line in a utility written for DOS. XD What I WILL tell you is that when configured properly in Windows Device Manager (i.e. assigned to COM1), the ancient PCIS software recognized the USA-19HS as a "real" RS-232 port which worked flawlessly at 19.2k baud in DOSBox, which was a small miracle in and of itself considering this particular PLC was so overdue for retirement that it "forgot" its program and faulted the very minute I de-energized the machine and performed LOTO. -.- I am also pleased to report that this particular USB to Serial converter works equally well with the MicroLogix 1400 and autoconfigures like a dream in RSLinx, although the A-B software/hardware limits practical speeds to 19.2k baud maximum.The adapter itself is a remarkably lightweight piece of kit that you can easily slip into your laptop bag or pocket, as the PCB is housed in a translucent smoke-colored plastic that I wish was a little sturdier, but I'll elaborate more on that later. The tapered side of the adapter has a snug-fitting USB B female connector which is more than adequate to hold the weight of the adapter itself, while the wider side contains the obligatory 9-pin Male RS-232 port with securely attached posts that I've yet to see come unscrewed in use. The clamshell package also comes with a software installation disk that you MUST run before plugging the USA-19HS into your laptop or PC in addition to a USB A to B cord of decent length and quality. However, I highly recommend that you get a coiled one instead (which, thankfully, Tripp-Lite also makes) lest you do what I did and accidentally stretch the cord to the point where the adapter pulls free, falls onto a concrete floor, and bounces/skitters quite a few feet away. x.x I can't imagine this adapter ever breaking in "normal" use, but in an industrial application, you definitely want to be more careful with it. Despite the housing only being held together by wishful thinking after my admittedly careless handling (as a few tabs broke off inside the unit), it continued to work without any issues whatsoever. I'd say this was pretty impressive for an inexpensive piece of equipment that you'd not expect to survive such treatment.The bright side to this story is that Tripp-Lite's customer service was extremely helpful and accommodating when I called them to explain what had happened, and that I was using it for my job. Without any further questions much less hassle, they told me they'd just send a new unit directly to my workplace free of charge. Although they did caution me not to make a habit of submitting future warranty claims, I'm still very pleased that they stand by their products so much for commercial/industrial users.Were it not for the plastic Tripp-Lite uses in the unit's housing, I'd have given the USA-19HS five stars easily. Granted, the aforementioned 9300-USBS is much more ruggedized and thus better suited for industrial use, but it also uses an FTDI chipset rather than the Texas Instruments chipset of the former and comes with a far more hefty price tag to boot. All said and done, I'd rather save my money and just treat the $25 Keyspan with kid gloves. Durability gripes aside, it's an indispensible tool that shall always reside in my laptop bag along with my 1747-UIC and the 1745-PCC convertor that I'll (hopefully) never need again. XD 4Not Frustrating like the rest USB Adapters are frustrating. Some work, some don't, and some only work some of the time.I've had a variety of USB-Serial adapters, and the mixed bag of results, makes this one a refreshing change. It came with software, but I didn't need it. Just plug into the USB port, and it downloaded the proper driver straight from Windows Update. It just worked!It's a sturdy construction, and comes with the USB cable. The cable isn't incredibly long, so if you need to reach, you might bring another for longer distances. There is a light on it to let you know when it's connected, which is very handy, and the port that is created on the computer shows the Keyspan, so you don't need to pick trial and error until you have the correct port. This is powered by the USB port, so you do not need any kind of additional battery.Very happy with this, and I strongly recommend this to anyone who has a need for a USB to Serial Port adapter. 5Worth the extra cost compared to cheaper units I have used several different cheaper adapters that use the common Prolific chip and drivers. All of them have had spotty results, compatibility issues with various versions of Windows and MacOS. However the Keyspan USA-19HS has always worked perfectly for me, requiring no driver installation on Windows XP, 7, 8 and 8.1. Even though this unit is a little more expensive that the others, I highly recommend it.One of the cheaper adapters I purchased would only work with drivers that were designed for Windows Vista, and even though I was able to make it work by installing that driver on my Win 7 box, as soon as I unplugged it and plugged it in again, the Vista driver was automatically over-written by the Win 7 driver, and the adapter stopped working.One serial device I own (a security alarm controller) came with the recommendation to use this Keyspan adapter for USB connections, and I have found that this is completely true. No other adapter works with that device.An additional benefit of the Keyspan device is that the USB cable unplugs from the adapter itself - using a standard USB cable that can be obtained in many different lengths. This can be a big help in managing cabling between the adapter and the computer. 5
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  • Return or exchange requests can be made within 10 days of the delivery date.
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Shipment tracking ID will be provided after your product(s) is dispatched. The delivery date stated is indicative and subject to availability, payment authorization, verification, and processing. In case your product(s) is not delivered due to an incorrect or invalid address, we will not be able to process any claims. However, we will notify you if it is returned to us.

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