DVR AVTECH AVZ 203 Specifications: Video System NTSC / PAL (auto detection) Video Compression Format H.264 Video Input 4 channels (Composite video signal 1 Vp-p 75 BNC) Video Output BNC YES VGA YES HDMI YES Record & Backup Maximum Recording Rate 1080P 1920 x 1080 pixels with 60 IPS 720P 1080 x 720 pixels with 120 IPS QHD 960x540 pixels with 120 IPS Frame 704480 pixels with 120 IPS NTSC / 704576 pixels with 100 IPS PAL  Field 704x240 pixels with 120 IPS NTSC / 704288 pixels with 100 IPS PAL  CIF 352240 pixels with 120 IPS NTSC / 352288 pixels with 100 IPS PAL  Recording Mode Manual / Timer / Motion / Remote Pre-alarm Recording YES Playback Channel 4CH Quick Search Time / Motion search mode Backup Device USB 2.0 flash drive / Network Audio Audio Input 1 audio input Audio Output 1 audio output (Mono) General Hard Disk Storage** Up to 2 SATA HDDs SATA Interface YES Image Quality Setting Call: 0411-3636361 / 081933915990 (Hengky)