HP ProCurve 600$518.00 to $1,374.00

The HP ProCurve 600 Redundant and External Power Supply provides 12V RPS for up to 6 stackable switches and 2 ports with 370W 50V PoE.
Manufacturer:Hewlett Packard Product MPN MPN | J8168A#ABA | Key Features Wattage | 729 Watt | Dimensions Width | 12.8 in. | Depth | 17.4 in. | Height | 1.7 in. | Weight | 11.77 lb. | Miscellaneous UPC | 829160221786 |
Tags:hp, procurve, 600,
| StealthXStream OCZ700SXS$78.00 to $136.00

The StealthXStream, kept supremely cool with a large 120mm fan, features a standard ATX power supply form factor resulting in a compact footprint to accommodate virtually all computer towers.
Manufacturer:OCZ Product MPN MPN | OCZ700SXS | Key Features Wattage | 700 Watt | Number of Fans | Single Fan | Compatibility | EPS12/ATX12 | Power Properties DC Output | +3.3V @ 36A, +5V @ 30A, +5VSB @ 3A, +12V @ 18A, +12V (2nd) @ 18A, -12V @ 0.8A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.91 in. | Depth | 5.51 in. | Height | 3.39 in. | Warranty Warranty | 3 Years | Miscellaneous UPC | 842024009511 |
Tags:stealthxstream, ocz700sxs,
| Antec TruePower Quattro 1000$179.00 to $270.00

TruePower Quattro™ is 80PLUS® certified which means that Quattro™ consumes about 33% less energy than many equivalent power supplies with the same power output. Four 12V rails increase your system stability 9
Manufacturer:Antec Product MPN MPN | 0761345-27100-4 | Key Features Wattage | 1000 Watt | Compatibility | ATX 12V | Power Properties AC Input | 115V @ 15A, 230V @ 9A | DC Output | +3.3V @ 25A, +5V @ 30A, +5VSB @ 3A, +12V @ 18A, +12V (2nd) @ 70A, -12V @ 0.5A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.9 in. | Depth | 7.1 in. | Height | 3.4 in. | Weight | 5.75 lb. | Miscellaneous UPC | 761345271004 | Exterior Color | Black • White |
Tags:antec, truepower, quattro, 1000,
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This OCZ Z Series Gold OCZZ850M 850W ATX12V 2.3/ EPS12V 2.91 SLI Certified CrossFire Ready 80 PLUS GOLD C... power supply unit provides power of 850 watts.

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 TruePower Quattro (TPQ850EC ) power supply unit provides power of 850 watts.

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.