Specifications: 1) Input type: a) GV-800 BNC: BNC x 4 b) GV-800 D-type: DB15 x 2 2) Video input: 4, 8, 12, 16 cams3) Audio input: 4 channels4) Recording rate: 120fps (NTSC), 100fps (PAL)5) Display rate: 120fps (NTSC), 100fps (PAL)6) Video resolution: 320 x 240, 640 x 240, 640 x 480, 640 x 480 S/W7) Compression format: wavelet, MPEG-4, GeoMPEG4 8) GV-DSP support: yes9) GV-A16 support: yes10) GV-NET/IO card support: yes11) Dimensions: a) GV-800 BNC: 155 x 100mm b) GV-800 D-type: 150 x 100mm12) System requirements: a) OS supported: Windows 2000 / Windows XP b) CPU: Pentium III 800 minimum c) RAM: 256MB minimum d) HDD: 80GB recommended e) VGA: nVIDIA GeForce 2 MX200, 32MB f) DirectX: 9.0 and above producing area:China