H.264 compression,4 channel standalone dvr,support SATA HardDisk, Mouse,USB,network,IE browse FEATURES:• Stand-Alone DVR, H.264 Compression • Playback resolution: 4 x ... ,50f/s), NTSC(525Line,60f/s)Video Input4 channel, BNC , 1.0V p-p/75ΩComposite Video ... DVDRW and NetworkBit Rate5 Levels:120MB/H,150MB/H,250MB/H, 300MB/H,500MB/H, 1~1000MB/H Self-definedPasswordEncrypted by 128-bit Numerical Digits ...