Corsair Memory CMPSU-850TX$128.00 to $237.00

The Corsair TX power supplies are engineered using technology and components typically found with high performance power supplies. With design features such as a dedicated, single +12V rail offer the maximum compatibility with the system components.
Manufacturer:Corsair Memory Product MPN MPN | CMPSU-850TX | Key Features Wattage | 850 Watt | Number of Fans | Single Fan | Compatibility | EPS12/ATX12 | Power Properties DC Output | +3.3V @ 30A, +5V @ 30A, +5VSB @ 3A, +12V @ 70A, -12V @ 0.8A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.9 in. | Depth | 6.3 in. | Height | 3.4 in. | Warranty Warranty | 5 Years | Miscellaneous UPC | 843591003346 |
Tags:corsair, memory, cmpsu-850tx,
| 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,
| Antec CP-850$109.00 to $199.00

This Antec (CP-850) power supply unit provides power of 850 watts, it's fully compatible with ATX.
Manufacturer:Antec Product MPN MPN | CP-850 | Key Features Wattage | 850 Watt | Number of Fans | Single Fan | Compatibility | ATX | Power Properties DC Output | +3.3V @ 24A, +5V @ 30A, +5VSB @ 3A, +12V @ 22A, +12V (2nd) @ 22A, -12V @ 0.6A | Other Features MTBF | 100000 Hours | Dimensions Width | 6.9 in. | Depth | 7.9 in. | Height | 4.7 in. | Weight | 7 lb. |
Tags:antec, cp-850,
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This Antec BP500U power supply unit provides power of 500 watts, it's fully compatible with ATX 12V.

Built with quality components especially designed to offer extra long life and provide maximum system performance, this Coolmax power supply features over voltage, over power and short circuit protection and is compatible with all leading processors including Pentium 4, AMD Athlon XP and Pentium III. Includes built-in EMI filter for exceptionally low ripple noise.Minimize

This StarTech.com (ATX2POW500HS) power supply unit provides power of 500 watts, it's fully compatible with ATX 12V.

This Ultra Products X3 1600-WATT Modular Psu power supply unit provides power of 600 watts, it's fully compatible with ATX.