Control Center NVD0405DU-2I-8K Ultra-HD Network Video Decoder 2ch@8K/ 10ch@4K/ 36ch@1080P/ 144ch@D1 real-time decoding ability HDMI input max support 1 channel 4K@60fps collection 4ch HDMI output max support 4K@60fps output Up to 8K image splicing display Supports up to 4 video-wall display units or monitors. Splicing screens control for zoom/merge/roam/overlay Supports 1/4/6/8/9/16/25/36 and free split Fisheye de-warp function, supports multi-video split display in ceiling mount, wall mount, ground mount installation mode Supports alarm, RS232, RS485 Back