... channel alarm input, 1 channel alarm output DVR Details:1. H.264 Compression2. Adjustable 5-level bitrate,Adjustable image definition 3 ... )Video Input4 Channel, BNC , 1.0V p-p/75 ohmVideo Output2 Channel, BNC, 1.0V p-p/75 ohm, VGA x 1Audio Input2 Channel ... or PATA, 1000G more)Bitrate5 Levels: 150MB/H, 200MB/H, 250MB/H, 300MB/H, 1~1000MB/H Self-definedPasswordEncrypted by 128-bit Numerical Digits with ...