StarTech.com (ATX2PW500PRO) 500-Watt Power Supply$54.00 to $90.00

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
Manufacturer:StarTech.com Product MPN MPN | ATX2PW500PRO | Key Features Wattage | 500 Watt | Number of Fans | Dual Fan | Compatibility | ATX 12V | Power Properties AC Input | 115V @ 10A, 230V @ 5.5A | Other Features MTBF | 100000 Hours | Dimensions Width | 5.51 in. | Depth | 5.91 in. | Height | 3.39 in. | Weight | 4.43 lb. | Warranty Warranty | 3 Years | Miscellaneous UPC | 00065030817769 | Exterior Color | Nickel |
Tags:startech.com, atx2pw500pro, 500-watt, power, supply,
| 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,
| 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,
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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

This Ultra Products Lifetime Series Pro 650-Watt Power Supply power supply unit provides power of 650 watts. it's fully compatible with ATX.

The Catalyst 4500 Series Dual Input AC Power Supply supports data and PoE, is designed to accept either 100V AC circuits or 200V AC circuits. The 4200W supply is the largest internal AC power supply available for the Catalyst 4500 series switch. Customer planning large scale PoE deployments can use the dual inputs in the 200V AC configuration. Customers planning for the future can deploy the 4200W power supply with a single 100V circuit.Minimize

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