# Top advanced arithmetic: H. 264 (MPEG4 Part 10) video compression. # Powerful chipset: Adopt Philip-Trimedia Chipset that has 16DSP. One DSP Deal with one channel. # High stability: Absolute Hardware compression and professional embedded operating system. # Perfect image: 9 grade image level from 128k to 4.5M. It can satisfy with low bit rate for network transmission. And also for suitable bit rate for high image recording. #Good network transmission: It can transmit on PSTN, ISDN, ADSL, WAN, LAN. # Built-in 8 HDD: For industrial configuration. Don't pay any money on Disk Array. # Individually working: Each channel compresses the signal at real-time individually, the parameters of resolution, frame, and record time can be set up separately. # Support real watermark technology so that compressed image file can't be juggled.