StarTech.com ATX2POW500HS$55.00 to $94.00

This StarTech.com (ATX2POW500HS) power supply unit provides power of 500 watts, it's fully compatible with ATX 12V.
Manufacturer:StarTech.com Product MPN MPN | ATX2POW500HS | Key Features Wattage | 500 Watt | Number of Fans | Single Fan | Compatibility | ATX 12V | Miscellaneous UPC | 65030819602 |
Tags:startech.com, atx2pow500hs,
| Cisco PWR-C45-4200ACV$1,260.00 to $3,222.00

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
Manufacturer:Cisco Product MPN MPN | PWR-C45-4200ACV= | Key Features Wattage | 200 Watt | Miscellaneous UPC | 0882658008566 |
Tags:cisco, pwr-c45-4200acv,
| 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,
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This Compaq Dl385 G5p power supply unit provides power of 460 watts.

This Ultra Products LSP550 Lifetime Series Pro 550w PSU power supply unit provides power of 550 watts. it's fully compatible with ATX 12V.

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

This Thermaltake (W0224RU) power supply unit provides power of 850 watts, it's fully compatible with ATX.