... InputBNC, 4 channels(1Vp-p 75Ω) BNC, 8 channels(1Vp-p 75Ω)BNC, 16 channels(1Vp-p 75Ω) Video Output1CH BNC ... VGAAudio Compression8K*16bit ADPCMAudio OutputRCA, 1 channelAudio InputRCA , 1 channel(or 4 channels, option)RCA, 1 channelHDD Port1 SATA port ... ,Italian ,German, French, PortuguesePower Supply DC 12VWorking Humidity10%-90%Power Consumption< 10W (without HD)Working Temperature 0°C ~ 50° ...