Power Supply for Dell Precision Workstation 380 390 T3400 K8956 N375P-00 SATA Replaces Several Older Legacy Power Supply; Upgrade to 400 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