Notice: We will ship out black DVR system or white DVR system at randomly, these two ones are totally the same. The ONLY difference is the appearance, thanks for understanding. 4CH H.264 Full D1 DVR Security System with 4 Indoor/Outdoor IR Night Vision Surveillance Cameras and No Hard Drive DVR Features * Embedded Linux OS * H.264 Hardware Compression * Video Input / Output: BNC 4 / BNC 1 * Audio Input / Output: RCA 4 / BNC 1 * Other Video Output: VGA * Signal System: NTSC / PAL * Display: 120 fps * Record: 120 fps * Recording Mode: Continuous/ Scheduled/ Motion * Display Mode: Each/ All/ Auto more »