It is worked very well, but sometimes it won't read anything because most models of laptops' USB are not high power enough for the reader to able to read the badge. All desktops (All-in-one, tower, thin client, and mini) or docking stations 99% worked but not all laptops due not power enough.

This reader was able to easily read multiple versions of HID Prox/Proximity/ProxCard badges, while other cheaper RFID readers which bear a similar physical appearance do not.

If you need to read a wide range of 125KHz RFID fobs and cards, this reader might be what you need.

The biggest thing to determine before purchasing one of these RFID readers are the specifications of the card(s) you plan on reading. They all physically look similar, but the technology for reading the information is different.

Our cards use format 51 (advanced config) without prefix/suffix. As another reviewer stated, the instructions are a little confusing, but after reading it over a bit and playing around with a little guess-and-check, as long as it spits out some data the first time you use it, the card is most likely compatible with the RFID reader...you just have to figure out the configuration.

I give it 4 out of 5 stars due to the instructions. If the instructions were easily understood I'm fairly confident I would have had it properly configured in about 5 minutes. Unfortunately due to the confusion it took me about an hour. Still not bad considering it works, and it works well. The software-on-board configuration was a uniquely interesting way to program it too, which -even if clunky- I actually like; no possibility to lose the software or user manual!

It is worked very well, but sometimes it won't read anything because most models of laptops' USB are not high power enough for the reader to able to read the badge. All desktops (All-in-one, tower, thin client, and mini) or docking stations 99% worked but not all laptops due not power enough.

Documentation is not clear, but it contained an example, which happened to be exactly my situation, so I was able to get the device configured in short order. The expanded explanation, in the user "manual," available as a download from the web site (described in the enclosed documenation), was a little more expansive and explained more about the configuration options and process.

That said, once you configure it, it works as described. Hold a card or fob near it and it reads the data and, in my case, formatted it as a facility code and a serial number. Exactly what I wanted.

Overall, 5 stars for the device, minus one star for the documentation.

And the price is fine.