Replace Power Supply Upgrade 320W for Dell Inspiron 570S 580S Compatibility: Dell Inspiron 570S 580S Output Wattage: 320 W Connectors: 20+4 Pin Motherboard, 4-Pin CPU, 2x Molex, Floppy, 2x SATA Cooling: 80mm Cooling Fan Weight: 3lb Input Voltage: 100/240 V This TFX 320W 20+4 Pin PC Power Supply will easily replace your old, broken, or lagging power supply. With this 320W PSU for Dell Inspiron 570S 580S TFX power supply, you can replace the PSU in a wide range of Dell desktops. 320W power! With 320W of steady computer power, this TFX Replacement 320W power supply can power both older PCs and new custom builds with a wide range of peripherals.