... 4channel IP Server with H.264 support sata port AST-5804D-WS Four-Channel Encoder (with IDE storage)Technical Specification:Video ... Audio &Video composite StreamingVideo Frame Rate PAL: 1-25 frames/secondNTSC:1-30 frames/secondVideo Compression Bit rate16Kbit/S~16Mbit/ ... NTSC; BNC, level: 1.0Vp-p, impedance: 75Ω,Audio Compression G.726, G711, ADPCMAudio Input1 channel, RCA port, liner input, Impedance ...