The Antec Atom B550 80PLUS Bronze ATX Power Supply offers great performance to keep your desktop powered all day. It features an output of 550W, 80PLUS® BRONZE Certification, Active Power Factor Correction, CircuitShield Protection, and a 120mm silent fan.

The Antec Atom V550 ATX Power Supply offers great reliability to keep your desktop powered all day. It features an output of 550W, CircuitShield Protection, Thermal Manager, and a 120mm silent fan.