... platform3. Embedded high-speed microcontroller & Linux system, high stability, auto system upgrading4.120fps Realtime Recording, 4ch video input5 ... graphic quality for live, recording18. Minimize record file size - much longer record time19. Multiple Operation Mode20. Support live ... 4ch (RCA) / 1ch(RCA) Operationg Mode live display, record, playback, backup, network Recording Mode Manual, Time, Motion, ...