Yep. This is a pretty damn good HD tuner.
You can put two in a Windows Media Center box, and both will work great. With two HD tuners, you can record two HD programs simultaneously or record one and watch another program live.
Note that Avermedia says that WMCE requires the presence in the box of an analog tuner that does hardware MPEG encoding before WMCE will install and setup the AverTVHD A180 tuner.
The AverHDTV A180 will also work in a plain Windows XP box.