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,
| Coolmax V-500$19.00 to $28.00

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
Manufacturer:Coolmax Product MPN MPN | V-500 | Key Features Wattage | 500 Watt | Number of Fans | Single Fan | Compatibility | ATX | Power Properties DC Output | +3.3V @ 30A, +5V @ 45A, +5VSB @ 2.5A, +12V @ 18A, +12V (2nd) @ 16A, -12V @ 1A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.91 in. | Depth | 5.51 in. | Height | 3.35 in. | Miscellaneous UPC | 895963146212 |
Tags:coolmax, v-500,
| 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,
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This Antec BP500U power supply unit provides power of 500 watts, it's fully compatible with ATX 12V.

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

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.

Information technology professionals rely on HP quality to ensure maximum productivity. As the power of applications, processors, memory adapters and storage devices increases, high-end computer users are seeking ways to optimize their system performance. HP provides leading solutions, adding new levels of performance, availability, flexibility, and management.Minimize