ASUS ROG Strix 550W Gold PSU, Power Supply (ROG heatsinks, Axial-tech fan design, dual-ball fan bearings, 0dB technology, 80 PLUS Gold Certification, fully modular cables, 10-year warranty) The ROG Strix 550W features an 80 Plus Gold certification for energy efficiency, IP5X-certified 135mm Axial-tech 0dB fan, ROG heatsinks and 100 percent Japanese capacitors. The 550-watt power supply includes a 10-year warranty, fully modular cable design, plus a magnetic logo and stickers to customize the visible side of the PSU. ROG heatsinks cover critical components, delivering lower temperatures and reduced noise. Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure. Dual ball fan bearings can last up to twice as long as sleeve bearing designs. 0dB Technology lets you enjoy light gaming in relative silence. An 80 Plus Gold Certification is the result of Japanese capacitors and other premium components. Cosmetic customization is enabled by a magnetic logo and stickers that help you reskin the visible side to your liking. Fully modular cables keep your rig neat and tidy. 10-year warranty included.