This is my second Realtek key "RTL2832", the latter being different from the first from the perspective of the implementation of the components and the antenna socket. As for the first, provided the driver does not support Windows 8.1, so the software to access TV / DAB (Presto TVR), is not the key. No possible reception TNT while it is the primary function! In SDR against by the donctionne key libusbK perfectly with the driver (v3.0.6.0) and with the same performance as the first sign of a good consistency of production.