StarTech.com (ATX2PW500PRO) 500-Watt Power Supply$54.00 to $90.00

This 500 Watt, professional-grade power supply is the perfect upgrade or replacement for powering your AMD or Intel based PC. With two 12V power rails and premium EMI/RFI power filtration for low noise and ripple, this is the perfect solution for delivering stable power to the most demanding devices. Plus, with Quad+1 protection from short circuit, over power, over voltage and no-load situations, as well as a dual ball bearing 8cm fan for superior air flow, you can rest assured that this power supply will be as dependable as you need it to be.Minimize
Manufacturer:StarTech.com Product MPN MPN | ATX2PW500PRO | Key Features Wattage | 500 Watt | Number of Fans | Dual Fan | Compatibility | ATX 12V | Power Properties AC Input | 115V @ 10A, 230V @ 5.5A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.51 in. | Depth | 5.91 in. | Height | 3.39 in. | Weight | 4.43 lb. | Warranty Warranty | 3 Years | Miscellaneous UPC | 00065030817769 | Exterior Color | Nickel |
Tags:startech.com, atx2pw500pro, 500-watt, power, supply,
| 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,
| ModXStream Pro OCZ500MXSP$59.00 to $125.00

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.
Manufacturer:OCZ Product MPN MPN | OCZ500MXSP | Key Features Wattage | 500 Watt | Number of Fans | Single Fan | Compatibility | EPS12/ATX12 | Power Properties AC Input | 115V @ 10A, 230V @ 5A | DC Output | +3.3V @ 25A, +5V @ 25A, +5VSB @ 2.5A, +12V @ 18A, +12V (2nd) @ 18A, -12V @ 0.3A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.91 in. | Depth | 6.3 in. | Height | 3.39 in. | Warranty Warranty | 3 Years | Miscellaneous UPC | 842024009139 |
Tags:modxstream, pro, ocz500mxsp,
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This Antec (CP-850) power supply unit provides power of 850 watts, it's fully compatible with ATX.

This 450 Watt, professional-grade power supply is the perfect upgrade or replacement for powering your AMD or Intel based PC. With two 12V power rails and premium EMI/RFI power filtration for low noise and ripple, this is the perfect solution for delivering stable power to the most demanding devices. Plus, with Quad+1 protection from short circuit, over power, over voltage and no-load situations, as well as a dual ball bearing 8cm fan for superior air flow, you can rest assured that this power supply will be as dependable as you need it to be. Compliant with the ATX 2.01 form factor, the ATX2PW450PRO includes a split 24/20 pin ATX connector for compatibility with existing standards, as well as a generous number of accessory connectors to maximize your configuration possibilities.Minimize

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 Ultra Products Ultra Lifetime LS500 ATX12V & EPS12V Power Supply - 500W - ATX12V & EPS12V Power Supply power supply unit provides power of 500 watts, it's fully compatible with ATX.