... time HD SDI 1080P H.264 Hardware Compression Network DVR,4CH HD SDI input, 1HDMI,1VGA,1CVBS output 4CH Real time HD SDI 1080P H.264 Hardware Compression Network DVR4CH HD SDI input ... , 1HDMI,1VGA,1CVBS output, supports simultaneous TV ,VGA and HDMI output.Full HD 1080P ...