SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)

I bought one of these 3.5 years ago to work with PLCs, that one that I purchased still works. I bought one more recently and it wouldn't work. I bought another one 2 weeks ago and it also would not work. Both I tried with the same computer and compared it to the still working cable, but neither of the new cables would work.Update: The cables are working fine but the software I was working with was a bit troublesome. I overcame the issue and both cables seem to be working well now.

Years ago, serial cables were a dime a dozen and every PC and some laptops had a serial port. USB basically made the serial port obsolete for most devices except networking devices like switches and routers.Most switches in the past few years come with a micro USB or USB-C management port in addition to an RJ45 jack for a serial cable. I've found the USB connections to be hit or miss. But a serial cable always works.I have a TP-Link SG3428 switch that I needed to reset the password for so it could be adopted by an Omada controller. Most layer 2/3 switches don't have a reset button you can press, so you need to console in and do it from the bios. Used this adapter along with the RJ45 to serial port cable the switch came with and it worked perfectly.You will need to load the drivers for the cable as it has a chip in it. But the adapter comes with a driver CD. Ironically, that presents another problem as no PCs or laptops come with a CD drive anymore. But my personal PC at home has multiple disc drives so wasn't an issue for me.This cable just works, no issues. Highly recommended.

Easy amd simple, good quality

Beware, does not work on Macs. Works great on Windows though.

It worked.

Frustration and hassle free device. It worked straight-out-of-box. It came in a manufactured box, and it arrived extremely quick. This was a very good and affordable buy by a name I felt I could trust. Adequate length in the cord. I bought this to hook up my Brother embroidery card reader/writer to my Toshiba Satellite laptop that doesn't have a serial port, and this made it possible for me to now be able to use the device with my laptop with no hiccups.

I plugged this device into my MacBook Pro expecting to see devices appear under /dev/cu* and /dev/tty* but nothing appeared. It *does* appear in System Information under the USB subsection, but no devices appear under /dev. Fine, I'll download and install a driver, because this is the year 2025 and apparently drivers are still required for goofy devices like this one. There is no download matching the device I have, so I take a guess at which driver to download. There are three versions of the driver packed inside the .zip so I try the newest one, from 2021. I get a message that the kernel extension needs to be updated and could not be installed. Why in the heck is a usb to serial adapter so difficult in 2025? I would recommend against purchasing anything from Sabrent for a Mac. They clearly don't care about Macs.

Works fine on a M2 Mac running Sonoma and a Windows 10 box. Windows worked out of the box. Drivers from the Internet for the Mac didn't work, but I eventually learned that Prolific publishes their drivers on the App Store.Drivers come on CD, but who has a CD anymore?Biggest problem is that the cable has female nuts to mate to the thing you're plugging it into. However, devices typically also have female nuts and expect the cable to have the male screws. So I couldn't plug this into my device.I couldn't remove the nuts from the cable so I had to pull them from the device. So now it plugs in but isn't clamped by anything.