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,
| Cooler Master Elite RS400-PSARJ3-US$28.00 to $51.00

Elite power supplies deliver value while providing a durable power source for everyday computing. Using high performance components, Elite power supplies are compliant with most international standards including ATX 12V V2.3.
Manufacturer:Cooler Master Product MPN MPN | RS400-PSARJ3-US | Key Features Wattage | 400 Watt | Number of Fans | Single Fan | Compatibility | ATX | Power Properties DC Output | +3.3V @ 20A, +5V @ 16A, +12V @ 16A, +12V (2nd) @ 16A, -5V @ 2.5A, -12V @ 0.8A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.91 in. | Depth | 5.51 in. | Height | 3.39 in. | Warranty Warranty | 1 Year | Miscellaneous UPC | 884102004667 | Exterior Color | Black |
Tags:cooler, master, elite, rs400-psarj3-us,
| Corsair Memory CX400W$50.00 to $80.00

The Corsair Power CX400W is not your basic power supply. It features a thermally-controlled 120mm fan for whisper quiet operation and active power factor correction circuitry for clean, reliable power output. The extra long, sleeved cables allow easy integration into a wide variety of cases, and the large number of connectors assures compatibility with nearly all components.Minimize
Manufacturer:Corsair Memory Product MPN MPN | CMPSU-400CX | Key Features Wattage | 400 Watt | Compatibility | ATX | Power Properties DC Output | +5V @ 20A, +12V @ 30A, -12V @ 0.8A | Miscellaneous UPC | 843591002868 |
Tags:corsair, memory, cx400w,
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This Ultra Products X3 1600-WATT Modular Psu power supply unit provides power of 600 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 Antec (CP-850) power supply unit provides power of 850 watts, it's fully compatible with ATX.

This Hewlett Packard (437572-B21) power supply unit provides power of 200 watts.