It goes without saying that Corsair has some of the best power supplies on the market. The AX1200i and AX1500i power supplies have redefined what it means to be the best of the best, and they have proven to be the closest we have ever seen to being a perfect power supply.

Corsair's HX1000i power supply is currently retailing for $229.99 at Amazon and Newegg in the USA. In the UK it can be had for £157.99 at Overclockers . A 7 year warranty is provided for this power supply by Corsair.

Silent operation (semi-passive mode too; Selection of cables and connectors; Fully modular; 7 year warranty; Fan test button; digital controls & monitor; Excellent ripple suppression; 80 Plus Platinum Efficiency and High PFC; Corsair Link functionality; optional software provided

Commands a premium; Minor voltage droop on 12 volt rail at higher load

The Corsair HX1000i is the first member of Corsair's HXi lineup of power supplies that we have seen. We have, however, seen two of this unit's predecessors as well as a number of ~1000W power supplies recently.

All round Superb PSU Very quite, even under full load from two R9 290's The fan doesn't work unless its been used over 25% of the PSU power and with 7 years warranty, for those who wants to spend some extra money but have a long lasting PC with the best PSU power efficiency on the market

Two weeks ago, we had a look at the first and smallest unit in Corsair's new HXi line of power supplies. Enabled with Corsair Link, that unit proved itself a solid little unit indeed. It's time to go two sizes up from there and see how the 1kW unit behaves. Come on in, won't you?

Kitguru says: Another quality release from Corsair, and it is well priced considering the specifications.

competitively priced Platinum supply; well built; looks great; modular cables are first class; load regulation; very quiet; 7 year warranty

no shortage of competition in this sector

The Corsair power supplies have been at the forefront of PSU design and technology for many years now. Originally, we saw the old TX series as the entry level units, followed by the higher end HX series, and then lastly the AX series. Nowadays however, the branding has changed slightly.