4ch Standalone CCTV H.264 DVR with 500GHD

DIGITAL VIDEO RECORDER
* Pre-Installed 500GB SATA Hard Drive
Compression 　 * H.264
Video I/O 　 * BNC 4-Channel Inputs/ 2-Channel Outputs
Audio I/O 　 * RCA 2-Channel Inputs/ 2-Channel Outputs
Video Output 　 * 2 BNC
Display Resolution 　 * NTSC: 720 x 480; PAL: 720 x 576
Display Frame Rate 　 * NTSC: 120fps; PAL: 100fps
Record Frame Rate 　 * NTSC: 60fps; PAL: 50fps
HDD Interface 　 * SATA (Max 500GB)
Record Modes 　 * Continuous, Motion Detection, Sensor Triggered, Time Schedule
Record Picture Quality 　 * Low, Normal, High, Highest
Sensor & Alarm 　 * 4-Channel Inputs / 1-Channel Output
PTZ Control 　 * RS-485
Network Interface 　 * RJ45, TCP/IP
USB Interface 　 * USB 2.0
Remote Control 　 * IR Remote Control
Power Supply 　 * DC 12V (Adapter Included)