These outdoor linear power supply/charger is specifically designed to provide the power needed by the most demanding security and access control applications. It will convert a 115VAC 60Hz input to a 2.5 amp 12VDC or 24VDC continuous output. Unit's unique NEMA 4 UL Listed enclosure allows installation right at the outdoor equipment it is designed to power. Altronix LPS3WP12 Proprietary Power Supply is one of many Internal PC Power Supplies available through Office Depot. Made by Altronix.