TechniSat SkyStar USB HD. TV tuner type: DVB-S2. Interface type: USB. Minimum RAM: 512 MB, Minimum hard disk space: 64 MB, Minimum processor: Intel Pentium 4, 1.8 GHz. Minimum system requirements: USB 2.0, DirectX 9.0, Compatible operating systems: Windows XP Windows XP Professional x64 Windows Vista (x86 /x 64) Windows 7 (x86/x64)