Enermax REVOLUTION X’t II 550W Power Supply ERX550AWT 80 Plus Gold Certified Twister Bearing Fan and Built-in HeatGuard<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Extreme efficiency PSU series with 87-92 efficiency @ 20-100% load. Certified to meet 80 PLUS® GOLD requirements </span></li><li><span class="a-list-item"> Help system to meet 2013 ErP Lot 6 (</span></li><li><span class="a-list-item"> Keep PSU fan running for 30-60 seconds after shutdown to remove excess heat and prolong system lifetime </span></li><li><span class="a-list-item"> Highest component standards for maximum durability and stability </span></li><li><span class="a-list-item"> 13.9cm Twister Bearing fan with low noise and long lifetime operation (160，000 hours MTBF) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/513gjIlW4ZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51jmDl9qUCL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51u2-ttlJaL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61sKoif4XlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61%2BM37Z-jFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51EFTThmLCL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/11zL7xqwCaS.png" noproxy>