Key Function:  1. Video Input: 16chs; Video Output: 16chs  2. Audio Input: 16chs; Audio Output: 16chs  3. Recording Rate: 480fps(N), 400fps(P)  4. Compression Format: H. 264  5. Single system supports Max. 4pcs, total 64channels  Specification:  01. VIDEO INPUT: 16 Channels  02. AUDIO INPUT: 16 Channels  03. ENCODE DSP NUMBER: 3  04. TOTAL CAPACITY: 480 fps (NTSC), 400 fps (PAL)  05. PREVIEW RESOLUTION: 704x576(PAL), 704x480(NTSC)  06. COMPRESSION FORMAT: H. 264, Support CBR, VBR  07. RECORDING RESOLUTION: CIF: 352x288(PAL), 352X240(NTSC)QCIF: 176x144(PAL), 176x120(NTSC)  08. AUDIO COMPRESSION: Sample Radio is 16KHz, Output Ratio is 16kbps i  09. ALARM IN/OUT: 16 Alarm in, 4 Alarm out  10. OS SUPPORT: Windows 98/2000/ Windows XP  11. MOTHERBOARD: Intel 845/865/915 Chipest  12. MEMORY: 256MB or above  13. DISPLAY ADAPTER: Nvidia Geforce Mx400/420/440 series, FX5200/5600  14...ATI Radeon 7000/7200/7500/8500/9000 Series, ATIx700