Model Number: TT-S10416 Compression mode: MPEG-4/ H.264 Resolution: 640 X 480, 352 X 288, 320 X 240 Video total frame rate: 240fps in NTSC, 200 fps in PAL for display and recording Chipset: 6801, can get Philip 7310 quality. Video input: 4-16channel video inputs with BNC Audio input: 1 channel audio input with microphone 2 cards can be inserted in the same PC at most, to form 16 surveillance screen real -time display modes or 24/32 surveillance screen display modes, S10416 and S10204 can be inserted in the same PC to form 20 channel DVR Operating System: Windows2000 Professional / Server / XP