AHD 4 Channel DVR Hot selling. The 4 CH Full AHD DVR Combo 4 PCs weather proof Style. 4 channel DVR home CCTV includes a 4 Channel H.264 standalone DVR and 4 color security cameras providing everything you need to have your surveillance system up and running. The DVR is a 4 channel, fully integrated, real time, and hardware based standalone DVR with network access, VGA video output, and USB 2.0 backup. The cameras included in the are 1/4″ color CMOS IR night vision dome cameras.It has network access, VGA video output, HDMI PORT and USB 2.0 backup.This system allows you to view your footage no matter the time and location. Access your DVR via your computer over the internet.