8 Channel DVR Records AHD, TVI, CVI and Analog Cameras Up to 3MP W/ Ability to add 4 IP cameras (8-DVRAHD)

16 Channel DVR Records AHD, TVI, CVI and Analog Cameras Up to 3MP W/ Ability to add 8 IP cameras (16-DVRAHD)

4 Channel DVR Records AHD, TVI, CVI and Analog Cameras Up to 3MP W/ Ability to add 2 IP cameras (4-DVRAHD)

NSDV-216QK 16 Channel 3MP / 1080P Tribrid HD-TVI DVR - Mix and Match all channels with TVI/CVI/AHD/Analog and IP cameras

NSDV-208QK 8 Channel 3MP / 1080P Tribrid HD-TVI DVR - Mix and Match all channels with TVI/CVI/AHD/Analog and IP cameras

NSDV-204QK 4 Channel 3MP / 1080P Full Tribrid HD-TVI DVR - Mix and Match all channels with TVI/CVI/AHD/Analog and IP cameras

NSDV-204UK 4 Channel Tribrid HD-TVI DVR - Mix and match all channels with TVI/CVI/AHD/Analog and IP cameras