... -SDI input,H.264 video. 1080P ip video encoder for CCTV cameras. Standard H.264 video compressionSupport 1080P,720P,SVGA,XGA ... , external inputAlarm Port4in/4outPre-recordingSupportFunctionCommunication PortSATA HDD(optional), USB, SD card, 1 RJ45, 1 RS232, 1 RS485Support ProtocolsTCP/IP,HTTP,UDP ... ) *157(H) *46.5(W) 1080P ip video encoder for CCTV camera