Power Supply
Corsair RM1000x 1000W 80+ Gold
● In Stock
Price on enquiry · Message us for today’s quote
The power supply is the one component you do not have to replace when you upgrade — provided you bought enough of it the first time. 1000W is the bracket that lets a graphics card change hands underneath it two or three times without the supply ever being the reason you cannot. Gold-rated, fan idle until there is load to justify it, and a native 12V-2×6 connector so a current card plugs straight in with no adapter in the chain.
Key Specs
Output — 1000W continuous
Efficiency — 80 PLUS Gold
Cabling — Fully modular
Standard — ATX 3.1 with native 12V-2×6 connector
Fan — Zero-RPM mode at low load
Best for — Room for a larger card later
Warranty — Full manufacturer warranty
What It Pairs With
Today it will run a Ryzen 9 or Core Ultra 9 with a card near the top of the range and still spend most of its life well inside itself. The part worth thinking about is the build after this one: keep the cables with the unit, because modular cables are not interchangeable between models and a set thrown away is a set to buy again. A case with a floor intake and filter suits it, and the zero-RPM behaviour means it adds nothing to the desktop noise while you are not gaming.
Who This Isn’t For
If the machine is built for one fixed job and will be replaced whole rather than upgraded a piece at a time, the headroom is capacity bought for a future that never arrives — size it to the parts instead and put the difference into the graphics card. It is also worth knowing that a supply running at a very small fraction of its rating sits below the load band where its efficiency is best, so a modest build genuinely does not benefit from the bigger number.
Common Questions
Is it wasteful to run a 1000W unit on a build that draws 500W?
Not meaningfully. A supply draws what the machine asks for, not its rating. Efficiency does dip at very low load, so there is a point below which the big number stops making sense, but a normal gaming build is not near it.
Will it really carry over to my next build?
A good supply usually outlives the parts around it, and this one has the wattage and the current connector to stay relevant. Keep the box of cables somewhere you will find it in three years and the transfer is straightforward.
Can I use the cables from my old modular supply?
No, and it is important — the pinouts differ between makes and models, and the wrong cable can damage hardware. Always use the cables that came with the unit. If yours are missing, tell us and we will source the correct set.
Tell us the parts you are running now and anything you expect to upgrade to, and we will say whether 1000W is the right bracket to buy once. Send your case model too so we can check the housing length. Availability confirmed at time of quote.