Bought this to install in a house in Wales which has no access to broadband. A recent lightning strike had fried the internal modem so I decided to buy a USB one as the PC is Windows 7 (64bit). Drivers loaded a treat but unfortunately it's around a quarter of the speed of the old modem. Have had BT involved to verify all the wires down to the PC and all is OK so now trying other modems as it's too slow.
Can't wait for the Superfast Broadband (BDUK) to reach Wales.