Perixx PERIPRO-401 PS2 to USB Adapter for Keyboard and Mouse - Built-in USB Controller - Black

I bought this adapter to use with my old IBM Model M keyboard. I had heard that these keyboards can be finicky with which adapters they do and dont work with so I was a little nervous it wasnt going to work. I am happy to say though, that it works fine. I will update this review if anything changes.

I work with many computers and this USB to PS/2 adapter has come in handy many times, so much that I have purchased multiple units. So far this unit has worked in every new PC I needed to add to PS/2 based KVMs. Interestingly enough, while this dongle also works to allow PCs to boot headless through a BIOS that does not have an option to skip keyboard errors on POST, I found that it allowed a Gigabyte GA-970A-UD3 motherboard to boot with a brand new Corsair Gaming K70 RGB MK.2 keyboard that can only be plugged into a USB 3 port. Just having this adapter plugged into a regular USB port allowed the PC to boot past the POST screen into Windows 10, where the OS loaded the keyboard drivers to recognize the keyboard and allow one to log on and use it normally. Worth the $6 to use new keyboard on old system.

I used the adapter for a 2 port KVM switch with PS2 connectors for one of the computers. I went through 2 keyboards and a mouse before I found a third pair that would work. The keyboard that worked was a Inland brand from Microcenter and the mouse was generic. I adapter works well once the right keyboard and mouse were found. I gave it four stars because of the trouble making it work.

I have a old laptop which I converted from Widnows to ChromeOS for my daughters school distant learning. She didnt like the the laptop keyboard layout, so I dug up an old PS keyboard for her to use. With this adapter, she is able to get familiar with the standard keyboard.

Notice how this one is stated to be compatible with a KVM switch. Support PS/2 Port of KVM Switch - Built-in USB IC. Not all of these adapters state that compatibility. Boy what a nightmare I had because I used one that was not compatible with my 4 port PS/2 KVM Switch & Windows 10 pro had a problem loading in a Generic Driver for it & I had no Keyboard or Mouse. So if you use a KVM Switch try this one. As soon as I used this one, problem solved, & as another reviewer pointed out, plug this adapter in 1st & the OS load in the Generic Driver, then plug in Leboard & Mouse.

Did the job to hook up a nearly 20 year old Dell keyboard to a 3 year old Dell laptop that had a section of its keyboard quit. Plugged into laptop first, allowed it to be recognized, then plugged in keyboard and worked right away.

Didn’t work at all.

Since my new computer only takes USB hookups and my new keyboard is much narrower/smaller keys, I started looking for a PS2 to USB adapter so that I could still use my old keyboard -- which has an old PS2 socket. Looked around the internet and found only imposters. This one actually works! No software needed. After booting up the computer, I unhooked the USB for the new keyboard -- then plugged in the PeriPro adapter to let the computer recognize it (Windows 10). After the adapter was recognized, I then plugged in my old PS2 keyboard to the PeriPro adapter and voilà. It works great!

It worked.

Needed this converter from PS2 to USB in order for my wifes keyboard to work. It now works fine. Did not need the mouse adapter.