4 Channel , Camera Compatibility Analog/IP/AHD 720P/AHD 1080P/AHD 5MP/HDCVI 720P/HDCVI 1080P/HDCVI 4MP/HDCVI 6MP/HD-TVI/TurboHD 720P/HD-TVI/TurboHD 1080P/HD-TVI/TurboHD 3MP/HD-TVI/TurboHD 5MP , SATA , 1x15pin D-sub , 1xHDMI , 1xAudio-In , 1xAudio-Out , 2xUSB 2.0 , 1xRJ45 , 1xRS-485 , DC 12V/2A