Replacement Power Supply Upgrade for Dell Studio Slim 540S Upgrade Use this replacement to replace your dead PSU. This power supply has 420 watts of power and can be a replacement for the 250 watt / 300 watt / 320 watt versions.
Compatibility: Dell Studio Slim 540S
Output Wattage: 420 w
Connectors: 20+4 Pin Motherboard, 4-Pin CPU, 2x Molex, Floppy, 2x
SATA Cooling: 80mm Cooling
Fan Input Voltage: 100/240 V