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JUSTOP CIT Value 500W ATX PC Power Supply PSU With 12CM Quiet Fan And 3 x SATA / 24-PIN / 4+4-PIN 12V / 2 x MOLEX / 1 x Floppy : Amazon.co.uk: Computers & Accessories
Amazon.com: G.Skill MB850G PSU, 80 Plus Gold, Fully Modular ATX Power Supply 850 Watt, Compact 140mm Size, 120mm Cooling Fan, Gaming Computer Power Supply : Electronics
How to connect power supply unit to the computer: step by step instructions