... 4 channel standalone dvr,support SATA HardDisk, Mouse,USB,network,IE browse FEATURES:• Stand-Alone DVR, H.264 Compression • Playback resolution: 4 ... CD-RW (Option: DVD-RW), USB 2.0 and NET backup supported • PTZ camera control in local and remote ... 50f/s), NTSC(525Line,60f/s)Video Input4 channel, BNC , 1.0V p-p/75ΩComposite ... 1.0V p-p/75ΩMonitor Video Output1 channel, BNC, 1.0V p-p/75ΩVGA Interface1 ...