Browse used power supplies from verified UK sellers. Find fully modular, semi-modular, and standard PSUs from trusted brands. A reliable PSU is the backbone of any PC build, and Koukan makes it easy to find quality units at lower prices with buyer protection included.
Buyer Protection
72h inspection / 14d returns
Escrow Payments
Protected Stripe transactions
Verified UK Sellers
Authentic hardware only
Protected Returns
Full refund if not as listed
Real-time verified marketplace listings with buyer protection, technical spec filtering, and escrow checkout
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Use our interactive PC Builder to guarantee compatibility with your motherboard, power supply, and chassis.
Typical UK secondary market prices and recommended use cases
850W · 80+ Gold · Fully Modular
750W · 80+ Gold · Fully Modular
850W · 80+ Gold · Compact
1000W · RTX 4090 ready
850W · 80+ Platinum · Silent
650W · 80+ Bronze · Budget
Quality power supplies from reputable brands are built to last and often come with long manufacturer warranties. Buying a used PSU from a trusted seller on Koukan lets you get a premium unit at a fraction of the retail price, with buyer protection included on every transaction.
Prioritise units from reputable brands with 80+ efficiency ratings (Bronze, Gold, Platinum). Check that the wattage meets your system requirements with some headroom. Modular PSUs are easier to work with for cable management. Ask the seller about the unit's age and whether it has exhibited any coil whine or fan noise.
A typical gaming PC with a mid-range GPU needs 550-650W. High-end builds with RTX 4080/4090 cards may need 850W or more. Use an online PSU calculator with your specific components for an accurate recommendation, and add 100-150W of headroom for reliability.
Everything you need to know about buying used power supplies on Koukan
Buyer Protection Guarantee
Every transaction is protected. Inspect your hardware with full peace of mind before funds are released.
Secure Escrow Payments
All transactions are processed securely through Stripe with automated escrow protection.
Protected Returns
72h dispute window on private sales; 14-day statutory return policy on all business listings.