... designOne channel strong analog signal output, independent and broad PCI-ESave as EXE self displaying file, no need of ... super market, road, etc.Specification:Model: TWD-9004Compression: H.264Port: PCI-EVideo Input: 4 ChannelAudio Input: 4 ChannelDisplay Frame Rate: NTSC ... Support multi protocol, 1-24 channel input and outputBackup: USB, Network, CD-RW, DVD-RWPTZ: Support multi protocol, RS232/485, ...