HIKVISION Decoder DS-6904UDI(B) Decoder, supports Output: 4*HDMI/2*BNC, Input: 1*VGA/1*HDMI(4K), odd HDMI support 3840*2160@30HZ, decoding capacity 24MP@30fps: 2-ch, 12MP@20fps: 4-ch, 8MP@30fps: 8-ch, 5MP@30fps: 12-ch, 3MP@30fps: 20-ch, 1080p: 36-ch,max 36 division