Corsair RM850x 80 PLUS Gold, 850 Watts, Fully Modular ATX Power Supply Unit - Black : Amazon.co.uk: Computers & Accessories
Corsair RM1000x 80 PLUS Gold Fully Modular ATX 1000 Watt Power Supply (135 mm Magnetic Levitation Fan, Wide Compatibility, Reliabile Japanese Capacitors, Extremely Fast Wake-from-Sleep) UK - Black : Amazon.co.uk: Computers &
CORSAIR RM650 Fully Modular 80 PLUS Gold 650W ATX Power Supply - CP-9020280-UK