256CH 4K NVR H.265 NVR 1.Third-party network cameras supported 2. Up to 12 Megapixels resolution recording 3. Video outputs at up to 4K (4096*2160) resolution 4.Supports decoding up to 20 channels at 1080P resolution 5. Up to 256 IP cameras can be connected with 768M incoming bandwidth 6. Up to 16 SATA interfaces 7. Supports H.264+,H.264,MPEG4,H.265,MJPEG video format 8.Support redundant power supply to improve the system stability 9.Support HDD hot swap with RAID0,1,5,6,10 storage scheme configurable 10.Support various VCA detection alarm and VCA search 11.Decording 20+48CH @1080P256ch nvr in stock website:http://www.swatcamera.com/hikvision-nvr/256h-nvr/