The HP ProDesk Pavilion 400W Power Supply is a reliable and efficient power supply unit designed specifically for HP computers. With a maximum power output of 400W and featuring a cooling system with one fan, this power supply is suitable for various voltage requirements including 115V, 100VA, 208V, 120V, 240V, 230V, 220V, and 110V. The 80+ Platinum certification ensures energy efficiency, making it an ideal choice for computer systems needing consistent and stable power supply. Made by Lite-On, a trusted brand in the industry, this power supply is a dependable component for maintaining your system's performance.