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Buy & Sell Used PC Parts
in the UK

Verified by us. Ready to ship.
Most viewed GPUs right now.
Most viewed CPUs right now.
Full systems, ready to run.

Find the specific component for your bottleneck.
Buy used PC hardware without the usual risks.
List your GPU, CPU, or peripherals on Koukan. We handle the payments and provide the shipping label.You keep 100% of the sale price. No fees.

Read the technical specs and seller's reviews.
Your payment is held in escrow until delivery is complete.
Inspect the item, approve the release, and game on.
About Koukan
Koukan is the UK's dedicated marketplace for used PC components — designed from the ground up for people who actually know their hardware. Every feature exists to make buying and selling faster, safer, and less stressful than anywhere else.
Your money is held securely until you confirm the item arrived as described. Sellers keep 100% of the listing price — buyers pay a small protection fee that covers escrow, tracked shipping labels, and UK dispute resolution.
Listings are matched against our catalogue covering every major category — GPUs from NVIDIA and AMD, Intel and AMD processors, DDR4 and DDR5 memory, motherboards across all sockets, SSDs, power supplies, cases, and full builds. Accurate specs pulled automatically, not typed freehand.
Before you buy, run it through the build checker. Add components to your saved build and Koukan flags conflicts automatically — wrong socket, mismatched memory type, insufficient power headroom. Stop Googling "is X compatible with Y" and get a straight answer on the listing page.
Open Build CheckerSellers build reputation through verified listings, buyer ratings, and transaction history. Our moderation team enforces strict hardware condition guidelines, runs a zero-tolerance policy on fraud, and reviews community reports promptly — so the marketplace stays clean for everyone.