12 in 1 USB Simulator Cable Support FMS G4/G4.5/G5 XTR AeroFly RC RealFlight IBM-compatible PC computer with 1.0 Ghz Pentium 3/4 or AMD Athlon/64 compatible processor Microsoft windows XP, windows Vista or windows 7 operating systemn 256MB system meomory(RAM) 4 GB free, uncompressed hard-disk space . ATI radeon 9800/NVidia Geforce Ti4200 with at least 128MB memory. Microsoft DirectX 9.0c or higher DVD-ROM drive for installation 1 free USB 1.1/2.0 port . 100% DirectX 9 compatible sound card (optional)