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)

Easy amd simple, good quality

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.

This item was so good: it didn't even leave rope burns or anything!

Works fine

I ordered this to use for work since there are no laptops with serial ports anymore. Now I'm able to connect to the system using the USB port on my laptop. This will allow me to continue doing my work with my newer laptop.

This worked whan attached to a USB port on my Dell laptop running Windows 10. Needed a serial connection to a piece of local telephone equipment. I do not know whether the connected device needed anything other than transmit, receive, and ground. I had the usual frustration of whether straight-through or reversed signals were required. Professional tip: have both types of cables, as well as gender changers handy.

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.

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.