4K 128 Channel NVR (16 SATA, H.265+, RAID, HotSwap) 128 Channel, H.265 support, 576 Mbps recording bandwidth (RAID active: 512Mbps), Hot swap 16 SATA (up to 16 x 8TB), 12MP decoder. support, 2xHDMI (Standalone, 4K supported), 1xVGA, 1x Audio Out, 4x10/100/1000 Mbps Ethernet Interface, eSATA, RS-232, RS-485, Keyboard, 4x USB, Alarm I/O: 16/8, 19" rack mount, 3U Chassis, RAID 0,1,5, 6, 10 and JBOD support, Bi-directional audio support, redundant power supply (optional), Hot-swap