420W 420 Watt ATX Power Supply Replacement for Dell Dimension B110, 1100, 2200, 2300, 2350, 2400, 2450, 3000, 4300, 4400 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