Model: SF-D8204AV Video Compression H.264 Video System NTSC / PAL Operation System Linux Video Input / Output BNC 4-channel inputs / 1-channel outputs Audio Input / Output RCA 4-channel inputs / 1-channel outputs Display Frame Rate PAL: 100fps / NTSC: 120fps Playback Resolution PAL: CIF(352x288), HD1(704x288), D1(704x576)  NTSC: CIF(352x240), HD1(704x240), D1(704x480) HDD Interface 1 fixed SATA HDD rack, support up to 2TB HDD Network Interface RJ45, Support to live view with IE (Internet Explorer) & with Mobile phones ,with VGAUSB2.0 USB mouse, USB disk,  PTZ Built-in RS-485 port, support PELCO-P & PELCO-D Power Supply DC 12V/3A (power adaptor included) Power Consumption 10~15W Working Temperature -10°C to +40°C Working Humidity 10% to 90% Dimension 280 x 260 x 50mm (W x D x H) 

Economic and D1 Full time recording (SF-D8904AV)