Mine is branded MVPower CCTV DVR Model TV-7108HE, P/N:UKEX39534 HD CCTV H.264 video equipment.
It comes with or without video cameras and with or without a hard drive. I chose the 4 camera, no hard drive option. You may have chosen some other combination.
Working on the back panel first, mine has 8 video in, 1 video out, 1 HD output, 1 audio in, 1 audio out, 1 VGA out, 1 net (ethernet, RJ45), 2 USB ports, 1 RS485 port, 1 DC12v power port, 1 power switch.
Continue reading Cheap DVR teardown and pinout (MVPower, Hi3520D_v1.95p)