AdessoADP-PU21 - PS/2 to USB Adapter, connects 2 PS/2 connectors to 1 USB port/hub,Black

Hours of research on the web and days of experimentation with two new 64-bit Win 7 computers and twenty-year-old Gateway Anykey keyboards lead me to this conclusion: Unless you bought the PS/2-USB adapter or converter with the keyboard, finding one that works with your old keyboard is a trial-and-error process. The good news is that they are not expensive.The consensus seems to be that simple adapters do not work. I wouldn't know, as I don't own one. I bought the Ziotek "blue cube" converter recommended and sold by [...]. It did not work very well with my treasured AnyKey keyboards (this has nothing to do with their programmability, by the way). In a test repeatedly typing about 250 words, from twelve to fifteen words had missing letters. The error rate was highly variable, and from time to time it would go crazy, spitting out gibberish. Unintentional repeats, all caps when the caps lock was not on, and more. The computers themselves were also acting up, with improper boots etc.Microsoft's web site has a little demo that allows you to test whether your keyboard blocks certain letters when you quickly press a combination of letters. This is important for gamers (not me) and fast typists (me). I found that, like most keyboards, my AnyKey keyboards do that. It appears to me that the downfall of the blue cube in my case was that they were not talking back to the keyboard to quickly reset it after it blocked certain keys.After reading the reviews here I bought the Adesso converter and all is well. No more skipped letters or other errors, other than my sloppy typing. Both computers have settled down also, which leads me to think that maybe the "wrong" converter can interfere with more than your keyboard.

I am a cheapskate, so even while everybody else was switching over to USB for everything, I still kept my older systems that have PS/2 connectors for Keyboard & Mouse. I did however switch over to DVI for video connections, because that does really provide a significant performance advantage over the older VGA type connections. By I have multiple systems here so I went and bought an IOGEAR GCS92 2-port DVI+PS/2 KVM switch, and that has worked well for me. Recently however I purchased a Foxconn A3700 book-sized system to use as an HTPC. It works great, but in doesn't have any PS/2 ports... only USB... and I had real trouble finding anything that would allow me to hook one of the system ends of the GCS92 into the Foxconn box in such a way that _both_ the keyboard and the mouse would actually work. t is easy to find inexpensive (cheap?) PS/2 to USB adapters, but as I've learned, most of these are "passive" and although they may work if you are wiring your keyboard and mouse to them directly, they definitely do not work if try try to use them with various KVMs, in particular the GCS92. What I've learnd is that for this kind of setup you need an "active" adapter. I wasn't sure if this specific thing was "active" but it was less expensive than the other other ones that I found that are "active" (which are made by Ziotek) so I ordered one and I am pleasantly surprised to see that yes, it _does_ work perfectly with my KVM. From that fact I am inferring that this one _is_ "active", but I don't don't know for sure. All I do know is that it works just fine and I'm a happy camper.

I have and IBM Model M that I wanted to use with my desktop computer. I already have a cheap membrane keyboard in the ps/2 port and got this adapter so that I could keep my multimedia keys (volume, play, pause, etc.) and hotswap my Model M when I wanted to do serious typing. This adapter works great for that.I would have given it five stars, but the box in the middle of the cord is somewhat flimsy. No one else has pointed this out, but if you're not careful with it, the plastic housing might come apart or the cables might pry it open if twisted too hard. However, if you don't want to move it around much and just plug it in and forget it, the adapter will be fine. If you want to travel with this adapter, you should be mindful of its cheap construction.If you want something more durable, you might try this adapter instead:  Ps/2 Keyboard & Mouse To Usb Adapter  It looks like it may be more solid. It is slightly more expensive though. I have not used it, but others claim it works with an IBM Model M. ClickyKeyboards.com also sells this item.

I bought one of these to use for my mother's new Dell "slim profile" machine which has no PS/2 ports on the back and only has four USB connectors.She is old, has a hard time seeing, and has gotten completely accustomed to "typing by feel" on the large original IBM PS/2 keyboard I got for her many years ago. She loves the large keys and touch... except that it's a PS/2 keyboard.Based on another review here, I bought this adapter for use on her machine so that she could continue to use the IBM PS/2 keyboard. She could not even see or feel or hear the keys on the supplied Dell keyboard that came with the new machine. It worked perfectly! And she was thrilled to have her old keyboard back.I also decided to buy one for me, just in case some day I upgraded my own desktops (I have two, both of which also have IBM PS/2 keyboards which I, too, love).Well, here it is six months later, and I was sent a Lenovo "secure laptop" by a customer to use for a remote connection setup. I don't like laptops and wanted to use my own keyboard and mouse (along with my monitor). So I pulled out this never-yet-used PS/2-to-USB adapter I'd bought six months ago, plugged in my mouse and keyboard, plugged in the USB connector to the laptop, and watched Windows recognize the new adapter hardware and add drivers for it, and then recognize the sub-attached mouse and keyboard!WORKS PERFECTLY!Terrific. Five stars. A+++

Mainly used as mouse adaptor.Works OK - no issues with drivers on Windows or Linux.Seems fairly robust, except grip retaining the cable from USB plug into unit has loosened slightly, exposing separate wires inside - but re-inserts OK, and drop of superglue should fix it.

Adaptor works as intended

it works

Operates flawlessly. Exactly what I needed and works with my IBM Model-M keyboard.