16 channel, 200Mbps bandwidth, up to 5MP decoding, 4ch 1080P preview&playback, 1 VGA/1 HDMI/1 TV, 1 RJ45 (1000Mbps), 2 USB (1- USB3.0), RS232, RS485, Two-way Talk, Alarm (in/out) 16/4, 3.5"HDD - 4 (up to 16TB), 1 - eSATA (up to 16TB), Support network cameras: Dahua, Arecont Vision, AXIS, Bosch, Brickcom, Canon, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Vivotek