H.264, 1~4 ports, Full D1 704*576 or 4 CIF 252*288,USB & SD Card,PTZ,PoE, WLAN support,IP Video Server 1 Channel IP Video ... Server (H.264/MPEG4 ... Input:1/2/4 Channel, 1.0Vp-p, 75ΩVideo Standards: PAL625Line,50f/s,NTSC525Line,60f/sVideo Compression: H.264Video Resolution: D1/ HalfD1/ CIF ...