EVGA - 80 Plus 600W ATX 12V/EPS 12V Power Supply - Black 100-W1-0600-K1 Heavy-duty protections, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), and OTP (Over Temperature Protection) Quiet and Intelligent Auto Fan for near-silent operation