USB to RJ11/12 6P4C RS232 Serial Cable Adapter with FT232RNL Chip for APC PDU UPS 940-0144 BMS Battery

I initially tried making my own cable, but it wouldn’t work, so I decided to buy this one—and I’m glad I did! It worked immediately to reset the password on my PDU with no issues at all. The cable length is excellent, giving me plenty of room to work. Being FTDI-based, the drivers installed and worked flawlessly without any hassle. This is a reliable and well-made adapter that saved me a ton of time and frustration. Highly recommend it for anyone needing a dependable APC USB to RJ11/12 solution!

it's not the right cable but is my own fault need a cable to connect hp deskjet 3631 printer to computerthouhht it was ethernet but not

Purchased this one and the other 2 cables for different vehicles. Only this cable was not working properly.

This serial cable worked perfectly for my APC AP8941 PDU. It was plug and play. No drivers, just open putty, select serial and enter the COM port and I was in. Too easy and highly recommended!

I used this to update the firmware on my LIFEPO4 battery. It work with no issues. I have only used it twice so not sure on longevity yet.

Got us into the console of the APC unit. Did the job.

Cable connected up to device and I was able to access console port without any issues. was a life saver for accessing an older device that we didn't have console cable for.

Difficulty installing driver