... and advanced compressing arithmetic. This encoder can simultaneously encode 4 HD signal with HDMI,YPbPr,CVBS,SV interface inputs, TS stream ... encoding standard support : H.264,MPEG-2,MPEG-4,etc. HD and SD bitrate:0.5~20MbpsAudio encoding standard : MPEG-1 ... 430mm(W)X 88mm(H)(2RU)Weight: 8kg 4-Channels HD Encoder H264 Mpeg-2 Mpeg-4