The part has Mac OS X driver. Works well. I use it together with a configured Archer C7 as an access point. Link Speed is constant 867Mbit / s, about 10 meters away. So that he can receive the full 150Mbit our Internet connection also effective. Be careful when using OS X Preview versions with higher system version than 10.8.5, there you have to install the driver manually, because the installer refuses (and this is not entirely trivial), but then runs anyway. Deductions gets the device for the general case, this blocked on most notebooks two or three USB ports directly. So you need a USB3 extension in many cases. In addition, the part is as ugly as sin. But that does not diminish the value yes.