4CH Network Video Encoder, H.265/H.264/MJPEG, 12fps@5MP, 15fps@4MP, 30fps@2MP or lower, Dual Streaming, AHD/CVI/TVI/CVBS(Pelco-C) compatible, RS-485 Interface (SAMSUNG-T, PELCO-P/D), ONVIF protocol support, HDMI output, Alarm I/O 4/2, Bi-directional Audio, PoE/12VDC