... G.711Image Resolution1080P(1920×1080), 1080P/4(960×540), 1080P/16(480×270), 720P(1280×720), 720P/4(640×360), 720P ... /16(320×180)Encoding SpeedMain Stream: 1080P , 1080P/4, 720P, ... 1~25/30fps/)Extra Stream: 1080P/4, 1080P/16, 720P/4, 720P/16 (1~25/30fps)Bit Rate256~8096Kb/s per ... Professional Dual-core based 4 Channel HD-SDI 1080P 2U Standalone DVR, DVR-9104HDI