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,
| 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,
| Ultra Products LS600$44.00 to $70.00

The Lifetime Series Power Supply supports all Intel and AMD platforms, SATA devices and PCI Express graphics cards. This power supply also includes short circuit protection, in-rush current protection and thermal overload cutoff protection.
Manufacturer:Ultra Products Product MPN MPN | LS600 | Key Features Wattage | 600 Watt | Number of Fans | Single Fan | Compatibility | ATX | Power Properties AC Input | 115V @ 10A, 230V @ 6A | DC Output | +3.3V @ 25A, +5V @ 32A, +5VSB @ 2A, +12V @ 32A, -5V @ 0.6A, -12V @ 0.6A | Dimensions Width | 5.75 in. | Depth | 6 in. | Height | 3.25 in. | Weight | 6 lb. | Warranty Warranty | Lifetime | Miscellaneous UPC | 22769401072 |
Tags:ultra, products, ls600,
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Ultra LS power supplies offer a Lifetime Warranty, more connectivity choices than the typical power supply, and have built in short circuit protection. The LS supports all Intel and AMD platforms, SATA devices and PCI Express graphics cards.

This Antec (CP-850) power supply unit provides power of 850 watts, it's fully compatible with ATX.

ATX12V version 2.2 80mm low noise cooling fan Dual 12Voutputs - 12V2 for Motherboard and peripherals; 12V1 for processor Industrial-grade protection circuitry prevents damage resulting from short circuts, power overloads, over voltage, and under voltage 80 PLUS certified

This Whistler PI-400W power supply unit provides power of 400 watts.