64 Channel 320M 3U 16HDD Bay 4K UHD Super Network Video Recorder

NVR 8-Camera 1080p 15FPS, DU-Series Upright Case, 120fps, dual  SATA w/ 1TB HD, up to 8TB, 1chan audio, HDMI/VGA. Without hard drive

NVR-DU8120

D-Series NVR 16-channels at 1080P 15fps, 720P at 30fps, 8-port POE, dual HD, up to 8TB, 1chan audio, HDMI/VGA. Without hard drive

NVR-D16240-P8

32 Channel 320Mbps 1.5U Network Video Recorder-320Mbps Bit Rate Input Max (up to 32-ch IP video) 4 SATA interfaces, 1.5U case, 19'. Without hard drive

NVR-H32320-XL