128 Channel 16 Bay Pro Series Network Video Recorder (NVR) Expandable upto 48 SATA interfaces (optional Mini SAS Disk Enclosures) 3U, with 2 x HDMI and VGA interface, , H.265&4K, 4 Network interface, 2 SFP interface, RAID 0, 1, 5, 6, 10, Hard disk hot swap on front panel,Redundant power supply(opitional), Up to 14 HDMI output(optional), 2 miniSAS ports ,