Constant power, no "sparks"

The RM1000i isn't cheap, clocking in at £144.95 from Overclockers UK . Of course, the old saying that you get what you pay for rings true and there's no doubt that this is a premium quality product. I'm very impressed by the latest Corsair power supply.

Fully modular cables; Incredible seven-year warranty; Exceptional ripple suppression; Semi-passive design; Fan-test button; Corsair Link; Great for overclocking; Ideal for multi GPU systems; Switchable single/multiple 12v rail; Sense wires + extra capacitors for voltage and ripple regulation

None

Corsair's been in the power supply business for quite a few years now. Lately, some have charged that they have lost their way in the marketplace, offering units that cost more than the competition and offer less performance.

The lowest-capacity unit Corsair's RMx line outputs up to 550W and is 80 PLUS Gold-certified. It features fully modular cabling, offers great performance and is nearly silent throughout its operating range, too.

Full power at 48°C; Efficient; Ripple suppression; Silent; Japanese caps; Fully modular; Hold-up time; Load regulation on the minor rails; Performance in Advanced Transient Response Tests; Semi-passive operation; Warranty

Price; No fan test button; Distance between 4-pin Molex connectors

Corsair might have started off as a computer memory manufacturer, but today they sell a number of components for PCs. One of their most active product lineups is their computer power supply units (PSUs) business, with the company offering dozens of products through six different series.

The Corsair power supplies have been at the forefront of PSU design for many years now, being the first manufacturer to allow your system to monitor your PSU's power draw and other statistics using Corsair link is only just being emulated by other manufacturers.