VZ-DVR-4K08H / VZ-DVR-4K16H – Quick Start Guide (Turbo HD/CVI/AHD/CVBS DVR, 8 Channels IP Video Input, 1-ch Audio Input/Output, 1 SATA Interface)
VZ-DVR-4K16H – Datasheet (Turbo HD/CVI/AHD/CVBS DVR, 16 Channels IP Video Input, 4-ch Audio Input and 1-ch Output)
VZ-DVR-4K08H – Datasheet (Turbo HD/CVI/AHD/CVBS DVR, 8 Channels IP Video Input, 1-ch Audio Input/Output, 1 SATA Interface)