StarTech.com ATX2POW500HS$55.00 to $94.00

This StarTech.com (ATX2POW500HS) power supply unit provides power of 500 watts, it's fully compatible with ATX 12V.
Manufacturer:StarTech.com Product MPN MPN | ATX2POW500HS | Key Features Wattage | 500 Watt | Number of Fans | Single Fan | Compatibility | ATX 12V | Miscellaneous UPC | 65030819602 |
Tags:startech.com, atx2pow500hs,
| Athenatech PS-400WX1$24.00 to $40.00

Athenatech manufactures professional computer cases and power supplies. The PS-400WX1 is a 400Watts Pentium ready power supply featuring 20 pin + 4 pin ATX-12V power connector, an 8 cm fan, 2 x Serial ATA (SATA) hard disks power connectors and Intelligent transformable mainboard connectors.
Manufacturer:Athenatech Product MPN MPN | PS-400WX1 | Key Features Wattage | 400 Watt | Number of Fans | Single Fan | Compatibility | ATX 12V | Power Properties DC Output | +3.3V @ 28A, +5V @ 40A, +5VSB @ 2.5A, +12V @ 20A, +12V (2nd) @ 20A, -5V @ 0.8A, -12V @ 1A | Dimensions Width | 5.9 in. | Depth | 5.7 in. | Height | 3.3 in. | Miscellaneous UPC | 875783009706 |
Tags:athenatech, ps-400wx1,
| Antec Signature 850$228.00 to $368.00

The Signature 850 features DC to DC voltage regulator modules which ensure greater system stability, and an 80mm Pulse Width Modulation (PWM) fan which can run up to 50% quieter than standard fans.
Manufacturer:Antec Product MPN MPN | 0761345-22850-3 | Key Features Wattage | 850 Watt | Number of Fans | Single Fan | Compatibility | EPS12/ATX12 | Power Properties DC Output | +3.3V @ 25A, +5V @ 25A, +5VSB @ 3A, +12V @ 22A, +12V (2nd) @ 22A, -12V @ 0.5A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.9 in. | Depth | 7.1 in. | Height | 3.4 in. | Weight | 6.14 lb. | Warranty Warranty | 5 Years | Miscellaneous UPC | 761345228503 |
Tags:antec, signature, 850,
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The Signature 850 features DC to DC voltage regulator modules which ensure greater system stability, and an 80mm Pulse Width Modulation (PWM) fan which can run up to 50% quieter than standard fans.

This Ultra Products LSP550 Lifetime Series Pro 550w PSU power supply unit provides power of 550 watts. it's fully compatible with ATX 12V.

The OCZ ModXStream provides Universal Input and Active PFC (Power Factor Correction) to effectively regulate input voltage across worldwide power grids and maintain an economical, stable supply of power.

Athenatech manufactures professional computer cases and power supplies. The PS-400WX1 is a 400Watts Pentium ready power supply featuring 20 pin + 4 pin ATX-12V power connector, an 8 cm fan, 2 x Serial ATA (SATA) hard disks power connectors and Intelligent transformable mainboard connectors.