Supports the latest ATX12V v2.2 standard and is backwards compatible with ATX12V 2.01 systems.Ultra-quiet 120mm double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying the RPM in response to temperature.Double-forward switching circuitry design offers maximum efficiency, up to 85% under wide load range.99% Active Power Factor Correction provides clean and reliable power to your system.Universal AC input 90~264V automatically scans and detects the correct voltage. No more hassle of flipping that tiny red switch!Dedicated single +12V rail offers maximum compatibility with latest components.Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components.High quality Japanese capacitors provide uncompromised performance and reliability.6 Serial ATA connectorsExtra long cables support full tower size chassis.Standard ATX PS/2 size: 5.9"(W) x 3.4"(H) X 5.5"(L); 150mm(W) x 86mm(H) x 140mm(L)MTBF: 100,000 HoursSafety Approvals: UL, CUL, CE, CB, FCC Class B, TÜV, CCC, C-tick.