TurboHD DS-72xxHQI-Kx and DS-72xxHQI-Kx/P Series DVRs feature a range of self-adaptive signal inputs and offer camera support on up to 16 channels. They offer transmission distances of up to 2,630 ft (800m) on 1080p, and 3,940 ft (1,200m) on 720p HD-TVI.