Replaces Several Older Legacy Power Supply; Upgrade to 420 Watts Built-in 20+4 Pin Adapter: Supports 24 and 20 Pin Power Supplies Reduced Depth for Increased Compatibility; 5.9' Height x 3.4' Weidth x 4' Depth Over Current and Over Power Protection; Over Voltage and Short Circuit Protection 110-260V AC Switchable Power Supply