Black Box Spare or Replacement P/S for Multi Head DVI KVM SwitchesKeep your critical KVM setup powered and protected with a dedicated spare power supply from Black Box. This Spare Redundant Power Supply is designed for devices that require 5VDC and up to 4A of power, delivering reliable, clean performance when you need it most. Whether youre expanding a multi head DVI KVM system or bolstering a Wizard KVM Desktop Switch deployment, this external power supply provides a ready to use solution that minimizes downtime