This refurb Corsair RM850x PSU is just £76 with a powerful eBay discount code | Eurogamer.net

The last day for SCARYSAVINGS20.

Corsair's PSUs have a fantastic reputation in the community for being reliable and efficient choices that are favoured by a lot of enthusiasts, and are usually rather reasonable in terms of their pricing. If you're building a high-power rig or you want to upgrade your existing PSU with a bit more headroom, I may well have found the deal for you. From eBay at the moment, this refurbished RM850x model is down to £76 thanks to the SCARYSAVINGS20 code that has been running for the last couple of days. You'll want to be quick, as this is the last day this code is going to be available.

Before going any further, it's worth explaining that this is a manufacturer refurbished unit that has been professionally checked, cleaned and refurbished by Corsair themselves. It's otherwise in new condition, and comes with a one year warranty. That's the only big difference between these certified refurb units and the retail ones at full price, which come with a much longer ten year warranty. If you'd rather go for a new, retail option for peace of mind, the best price we can find at the time of writing is £110 from Scan Computers.

This is a reliable 80+ Gold rated unit, which is is testament to its efficiency, and also provides peace of mind, too. Inside, this RM850x features a 135mm mag-lev fan with custom engineered rotors for a top-spec choice with little noise and excellent reliability, which is solid. The fact this is also a fully modular PSU also helps for cable management, and to allow for better airflow. Building a PC without a modular power supply can be a bit of a pain, given you'd have to find somewhere to put all the loose cables you aren't using, so a fully modular option keeps things convenient. Its 150x140x86mm dimensions are conventional for ATX power supplies, too, giving you a lot as far as compatibility goes to slot it into a variety of systems.

850W of power is enough for powering even some pretty beefy systems. It's the recommended wattage for most more 'standard' RTX 4090 offerings, apart from some overclocked models, while everything underneath that from both Nvidia and AMD will be more than adequate. For the RX 7900 XTX, the recommendation is a bare minimum of 750W, while 850W provides you with a bit of headroom. If it's also any further proof, Corsair's RMx PSUs are A-tier rated on the Cultists PSU Tier List (formerly of LTT Forums).

If it's a high power PSU you're after for a beefy gaming PC, being able to get this refurb 850W Corsair RM850x unit for just £76 from Amazon is excellent.