Article discussing things to look for when choosing a power supply including power output, form factor and noise level.

Manufacturer of low noise desktop power supplies between 400 and 460 watts. Also make cases, cooling solutions and modding kits.

Manufacturer of desktop and server power supplies, including silent fanless models. Also make cases, rackmount enclosures and CPU cooling fans.

Manufacturer of desktop and server PSUs. Includes technical specifications. [Flash intro]

Manufacturer of desktop, server and rackmount power supplies of between 250 and 550 watts.

Manufacturer of desktop power supplies between 350 and 525 watts. Includes links to product reviews. Also make LCD screens, dvd players and cathode light tubes for PC cases.

Manufacturer of ultra small form factor power supplies for network hardware.

Manufacturer of low noise desktop power supplies between 300 and 400 watts. Also make CPU cooling and case fans.

Manufacturer of low noise PC power supplies of between 330 and 480 watts. Includes technical specifications. [Flash intro sequence.]

Manufacturer of desktop and server power supplies, including adjustable fan speed and fanless silent models. Vary between 300 and 680 watts. Also offer cases and cooling products.

Manufacturer of low noise desktop power supplies of 300 and 400 watts. Also make system cooling and computer audio products.