Features: (1) TRIPLEX operation, multi client 4 users (2) H.264 video compression (3) Recording speed: 120 fps max (4) loop-through, comp./S-VHS output / VGA out (option) (5) Audio and alarm inputs / outputs (6) Network connectivity by static or dynamic IP (DHCP, DDNS) support (7) Recording resolution:704x480, 704x240, 352x240 (NTSC), 704x576, 704x288, 352x288 (PAL) (8) Optional secondary storage / archiving via USB and CD-RW in .avi format file (9) 3xHDD (Standard DC supply) (10) Live picture and playback (11) RS-485 interface for PTZ control (12) Full graphic user interface (13) Soft style power button prevents system failure by wrong operation Specifications: Model/Item AB-H5004AL Compression Format H.264 Network Support 10/100 Base-TX Ethernet (RJ-45) CPU 32 bits DSP HDD Unlimited HDD space (Range in HDDx3) for USB 1.1 version Unlimited HDD space (Range in HDDx2) for CD-RW mode Video Input 4CH composite (BNC) NTSC/PAL system Video Output Analog (BNC)/S-Video/Supports 1 Spot out (BNC)/4 Loop-through Audio Input -8dB---22k, RCA? Audio Output -8dB---92dB, RCA? Display Frame Rate 720x576 (PAL), 720x480 (NTSC) Record Resolution 704x576, 704x288, 352x288 (PAL) 704x480, 704x240, 352x240 (NTSC) Display Frame Rate 100fps(PAL)/120fps(NTSC) Recording Frame Rate 120/100 or 60/50 or 30/25 Alarm Input NO or NC, 4CH Alarm Output NO or NC, 1CH Recording Mode Continous, Motion detection and sensor activated Recording Schedule Setting recording schedule per camera Motion Detection Supports the setting of motion sensitivity per camera PTZ Control Yes, RS485 Number of Connection 1 connection (1 or 4 CH video) Remote Controller YES System Recovery After Power Failure Auto-rebooting, auto-scan and recovery of data System Operation Accessibility Button on front panel and IR remote controller Remote S/W Remote viewer (4 CH) /h5004.htm