Stand alone DVR with H.264 Compression, Use PHILIPS PNX 1701 Chip, SATA Hard disk, Support 2 SATA HDD 500G X2, VGA output, Video Input: 4 channel, BNC 1) Stand-Alone DVR, H.264 Compression 2) High quality video Display : NTSC (720x480), PAL (704x576) real time display 3) Multiple Recording Search Categories :DateTime, Event, Manual, Schedule, alarm, motion detection 4) Real time recording support: 120 Fps for NTSC at CIF image (100 Fps for PAL) 5) 4ch Video recording at the same time 6) Pentaplex: Live, Record, Playback, Back-up and Network at the same time 7) Backup: CD-RW (Option: DVD-RW), USB 2.0 and NET backup supported 8) PTZ camera control in local and remote area * Network Viewer: 1) Static, Dynamic IP and DDNS, Support Internet Explorer and special client software 2) Remote Live monitoring, file searching, Backup, Playback and PTZ camera control 3) Remote Configuration, Firmware Upgrade and Event (Alarm, Motion) Notification 4) Full duplex two way audio transmission * Specifications: 1) Compression Standard: H.264 2) Resolution: Preview resolution: 704 x 576 ( PAL ) , 720 x 480 ( NTSC ), Playback resolution: 4 x CIF, Frames: 1FS ~ 30FS(Adjustable) 3) Hard Disk: 2 SATA Hard Disk interface (Support Capacity from 40G to 3T in Total) 4) Video Input: 4 channel, BNC, 1.0V p-p75ohm 5) Composite Video Output: 1 channel, BNC, 1.0V p-p75ohm 6) Monitor Video Output: 1 channel, BNC, 1.0V p-p75ohm 7) VGA Interface: 1 VGA, Resolution: 800x60060HZ, 1024x76860HZ 8) Audio Input: 2 channel, RCA 9) Audio Output: 2 channel, RCA 10) Alarm Input: 2 Channel, Trigger closed without Voltage, Open or Closed 11) Alarm Output: 1 Channel, Trigger closed without Voltage, Open or Closed 12) Alarm Mode: Sensor Input, Motion Detection, Video Loss, Full Disk Space. 13) Network: Ethernet (10100M ), LAN, WAN and ADSL 14) Control Way: USB2.0 Mouse, Remote Control, PTZ, Camera, RS485 x 1 <b