Ultra Products LSP550 Lifetime Series Pro 550w PSU$50.00 to $75.00

This Ultra Products LSP550 Lifetime Series Pro 550w PSU power supply unit provides power of 550 watts. it's fully compatible with ATX 12V.
Manufacturer:Ultra Products Product MPN MPN | LSP550 | Key Features Wattage | 550 Watt | Number of Fans | Single Fan | Compatibility | ATX 12V | Miscellaneous UPC | 22769401164 |
Tags:ultra, products, lsp550, lifetime, series, pro, 550w, psu,
| Antec TruePower Quattro TPQ850EC$144.00 to $242.00

This Antec TruePower Quattro (TPQ850EC ) power supply unit provides power of 850 watts.
Manufacturer:Antec Product MPN MPN | 0761345-27850-8 | Key Features Wattage | 850 Watt | Miscellaneous UPC | 0761345078504 |
Tags:antec, truepower, quattro, tpq850ec,
| 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 Thermaltake (W0317RU) power supply unit provides power of 700 watts, it's fully compatible with ATX.

This Whistler PI-400W power supply unit provides power of 400 watts.

The OCZ ModXStream provides Universal Input and Active PFC (Power Factor Correction) to effectively regulate input voltage across worldwide power grids and maintain an economical, stable supply of power.

This StarTech.com (ATX2POW500HS) power supply unit provides power of 500 watts, it's fully compatible with ATX 12V.