Corsair RMx Series™ RM550x — 550 Watt 80 PLUS® Gold Certified Fully Modular PSU (AU) Gold-certified efficiency with extremely tight voltage regulation to deliver superior performance. Corsair RMx series power supplies give you extremely tight voltage control, quiet operation, Gold-certified efficiency, and a fully modular cable set. Built with all Japanese 105°C capacitors, they’re a great choice for high performance PCs where reliability is essential. 80 PLUS Gold efficiency reduces operating cost and excess heat, and Zero RPM fan mode ensures virtual silence at low and medium loads. And, the fully modular DC cables make builds and upgrades easy, with clean, great-looking results. Warranty Ten Years Weight 1.66kg MTBF 100,000 hours 80 Plus Gold Power 550 Watts Fanless mode Yes Fan bearing technology Rifle Fan size (mm) 135mm C-Link Digital No Continuous output rated temperature (°C) 50°C Dimensions 150mm x 86mm x 160mm Modular Fully Sleeved cables Sleeved and Flat Black Cables ATX Connector 1 EPS Connector 1 Floppy Connector 1 Four Pin Peripheral Connector 4 PCIe Connector 2 SATA Connector 6 Plug Type AU