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,
| Antec EARTHWATTS EA-500$65.00 to $122.00

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
Manufacturer:Antec Product MPN MPN | 0761345-27500-2 | Key Features Wattage | 500 Watt | Number of Fans | Single Fan | Compatibility | ATX 12V | Power Properties DC Output | +3.3V @ 24A, +5V @ 24A, +5VSB @ 2.5A, +12V @ 22A, +12V (2nd) @ 22A, -12V @ 0.8A | Dimensions Width | 5.91 in. | Depth | 5.51 in. | Height | 3.9 in. | Weight | 3.48 lb. | Warranty Warranty | 3 Years | Miscellaneous UPC | 00761345275002 |
Tags:antec, earthwatts, ea-500,
| Thermaltake W0317RU$100.00 to $174.00

This Thermaltake (W0317RU) power supply unit provides power of 700 watts, it's fully compatible with ATX.
Manufacturer:Thermaltake Product MPN MPN | W0317RU | Key Features Wattage | 700 Watt | Number of Fans | Single Fan | Compatibility | ATX | Power Properties DC Output | +3.3V @ 24A, +5V @ 20A, +5VSB @ 2.5A, +12V @ 30A, +12V (2nd) @ 30A, -12V @ 0.3A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.9 in. | Depth | 5.5 in. | Height | 3.4 in. | Warranty Warranty | 5 Years | Miscellaneous UPC | 841163032534 |
Tags:thermaltake, w0317ru,
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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.

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

The Lifetime Series Power Supply supports all Intel and AMD platforms, SATA devices and PCI Express graphics cards. This power supply also includes short circuit protection, in-rush current protection and thermal overload cutoff protection.