Video Input: 16 Channels Video Output: 16 Channels Audio Input: 8 Channels Audio Output: 8 Channels Recording Rate: 480 fps (NTSC), 400 fps (PAL) Display Rate: 480 fps (NTSC), 400 fps (PAL) Video Resolution: 160X120 / 240X180 / 320X240 / 352X288 / 480X360 / 640X480 Compression Format: MPEG4/H.264 Compression Type: Software&Hardware Compression Chipset: TW6802, 10-bit ADC with 4H comb filter Operation System: Windows 2000/XP Software Language: English, Chinese, Turkish,Spanish, Portuguese, Pol NetWork Type: PSTN / ISDN / LAN / ADSL / Internet Remote Type: IE&Client Backup Type: TV Out: Yes Single System Support: 2 PCS Card Dimensions: MM Card Weight: 0 KG