Robust 2nd generation main unit with rugged connectors for linking up to four sensor units, Supports H.264 (MPEG-4 part 10/AVC) baseline, main and high H.265 (MPEG-H part 2/HEVC) main-profile and Motion JPEG video compression Resolution up to 1920 x 1080 pixels on all four channels, Up to 30 fps (with WDR), Supports Zipstream, Lightfinder, Forensic WDR, 2-way audio and I/O, 2 x microSD / microSDHC / microSDXC memory card slot Power over Ethernet (PoE, IEEE /802.3at, Type 2, Class 4), Please note: Comes without sensor units, only compatible with 2nd generation AXIS F Series sensors and TU6004-E cables.