400w power supplies

A good quality power supply is essential in any custom gaming PC. A component which is often overlooked, the PSU is the life-blood of your computer - a good source of power keeps everything running smoothly. Look for Bronze, Silver or even Gold rated power supplies to ensure that your PC will last for years to come. Modular power supplies can also help with cable management inside your PC, which in turn helps with airflow and cooling. Use the filtering options on the left to further refine your product selection.

Filter Selection

-
+
wattage
400W 450W
-
+
form factor
ATX SFX
-
+
modular
Modular Wired
-
+
brand
Be Quiet! Corsair
Bequiet! System Power 8 400W  400w  Power Supplie

Bequiet! System Power 8 400W

80+ WHITE | 12V - 22A | 120mm Fan | ATX

£38.99

Order Before 2:30pm for Same Day Dispatch

Corsair CX450M 80+ Bronze  400w  Power Supplie

Corsair CX450M 80+ Bronze

80+ BRONZE | 12V - 37.4A | 120mm Fan | ATX | Modular

£47.99

Order Before 2:30pm for Same Day Dispatch

Bequiet! Pure Power 10 400W  400w  Power Supplie

Bequiet! Pure Power 10 400W

80+ SILVER | 12V - 24A | 120mm Fan | ATX

£50.99

Order Before 2:30pm for Same Day Dispatch

Bequiet! SFX Power 2 400W  400w  Power Supplie

Bequiet! SFX Power 2 400W

80+ BRONZE | 12V - 17A | 80mm Fan | SFX

£58.99

Order Before 2:30pm for Same Day Dispatch

Bequiet! Straight Power 10 400W  400w  Power Supplie

Bequiet! Straight Power 10 400W

80+ GOLD | 12V - 32A | 135mm Fan | ATX

£60.99

Order Before 2:30pm for Same Day Dispatch

Bequiet! Pure Power 10 400W CM  400w  Power Supplie

Bequiet! Pure Power 10 400W CM

80+ SILVER | 12V - 24A | 120mm Fan | ATX | Modular

£64.99

Order Before 2:30pm for Same Day Dispatch