Summary: I have used these Startech cards in several computers for clients that have the need for a serial interface still. In my case to connect to and older yet still functional APC Smart-UPS unit that I really do not want to add a NMC to. These do the trick just fine. No issues with drivers in Windows 10.
Summary: Recommend to anyone who needs a serial port for any kind of serial port application.
Pros: I have a Dell PowerEdge 6800 running openSUSE Leap 42.1 and acting as a Xen server. I also have a APC UPS 2200, a huge beast of a UPS. However, the UPS's USB port is busted. I tried using the built in serial port for my server, but it is slaved to Xen as a console port. Installed this serial port...
I never could get my computer to recognize the card ...
Mike S., Amazon
22 February 2016
Summary: I never could get my computer to recognize the card and admit I am not a tech person. I gave up and used the Tera Grand - Premium High Speed USB 2.0 to Serial RS-232 DB-9 Converter - Supports Windows 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac - with FTDI Chipset. It worked without any issues.
Summary: This serial adapter uses a bridge made by FTDI. The driver works great with Macs (get the latest driver from the FTDI support site). These are better than the Prolific PL2303 bridges. I had several Tandberg/Cisco devices that would not work with a Prolific bridge that worked with the FTDI bridge.