The 0E-1213A4K8 provides noise-free power for up to eight 4K/8MP video surveillance cameras. In addition to an advanced anti-interference design, this product features individually adjustable voltage knobs that allow installers to select the optimal voltage (11-14 VDC) for cameras positioned at different distances. Grounding isolation, individual Class 2 PTC fuses and 6kV surge protection help to safeguard essential equipment.