Power Supplies		TIGER'S TOP SELLERS
Ultra LSP650 650-Watt Power Supply The new LSP is the latest addition to our line-up of professional power supplies. It provides the ultimate amount of power and performance. Only $69.97	OEM White Box 450-Watt ATX Power Supply If you want the latest in power supply technology, the Diablotek GT 450-Watt ATX Power Supply is a perfect solution for you. Only $15.97	1.  Ultra LSP750 750-Watt Power 2.  Ultra X3 ULT40312 850-Watt P 3.  XION Power Real 1000-Watt Po 4.  Ultra LSP650 650-Watt Power 5.  Ultra X4 850-Watt Modular Po 6.  Ultra X4 1050-Watt Modular P 7.  iStarUSA 400W-Watt 2U Redund 8.  Corsair CMPSU-1000HX 1000-Wa 9.  OCZ ModXStream Pro Power Sup 10.  OEM 500-Watt ATX Power Suppl

Power Up 550-Watt Power Supply Power Up / 550-Watt / ATX / 120mm Fan / SATA-Ready / Power Supply Only $39.97    OEM 500-Watt ATX Power Supply OEM White Box 500-Watt ATX Power Supply - 500-Watt, ATX, 12V, OEM Only $21.97    Corsair CMPSU-1000HX 1000-Watt Power Supply Corsair CMPSU-1000HX 1000-Watt Power Supply - ATX, 140mm Fan, SATA-Ready, SLI Ready Only $229.97 after rebate*    Coolmax CL-500B Power Supply Coolmax CL-500B Power Supply - 500-Watt, 120mm Blue LED Fan, PCIe Only $52.99    XION XON-630P12N Simple Power 630-Watt ATX PSU XION Simple Power 630W ATX Power Supply Only $59.99    Coolmax CUL-850B Power Supply Coolmax CUL-850B Power Supply - 850-Watt, 140mm Blue LED Fan, Semi-Modular Only $98.99 after rebate*    Coolmax 1000-Watt 80 Plus Power Supply Coolmax ZP-1000B Power Supply - 1000-Watt, 140mm Fan, Semi-Modular, PCIe, 80 Plus Bronze Only $129.97 after rebate*    Ultra X3 ULT40312 850-Watt Power Supply Ultra X3 ULT40312 850-Watt Power Supply - ATX, SATA-Ready, PCI-E Ready, Energy Efficient, Modular, Lifetime Warranty Only $224.99    BFG 550w ATX Black Power Supply BFG 550w ATX Black Power Supply - Modular Only $54.97 after rebate*    DiabloTek PSDA400 Power Supply DiabloTek PSDA400 Power Supply - ATX, Dual 80mm Fan, 24-Pin, SATA Ready Only $22.97    XION Power Real 1000-Watt Power Supply XION Power Real 1000W ATX Power Supply Only $109.97    BFG 450-Watt ATX Black Power Supply BFG 450-Watt ATX Black Power Supply Only $32.99 after rebate*    Ultra X4 850-Watt Modular Power Supply Ultra X4 850-Watt Modular Power Supply - 135mm Fan, ATX, Lifetime Warranty, 80+ Silver, NVIDIA SLI & ATI Crossfire Certifications. Only $219.97    XFX 850W Black Edition Modular Power Supply XFX 850W Black Edition Modular Power Supply - ATX, 80 Plus Silver, 135mm Fan, Single Rail, NVIDIA SLI, ATI CrossFire Ready Only $263.99    OCZ ModXStream Pro Power Supply OCZ ModXStream Pro Power Supply - 600-Watt, Modular, Dual +12V Rails, SATA, 80Plus Only $73.99 after rebate*    OCZ GameXstream 850 Watt Power Supply OCZ OCZ850GXSSLI GameXStream Power Supply - 850 Watt, ATX, 120mm Fan, SATA-Ready, SLI-Ready, Active PFC, Refurbished Only $98.99

Accessories (20)   700W + (30)   80 Plus Certified PSUs (31)   less than 300W (6)   800W + (26)   Modular Power Supplies (34)   300W + (19)   1000W + (21)   Notebook Chargers (158)   400W + (35)   1200W + (13)   Power Protection (401)   500W + (27)   SLI Certified PSUs (19)   mATX (2)   600W + (34)   Crossfire Certified PSUs (5)   New Arrivals (1)

Computer Power Supply

A computer power supply unit (Computer PSU) is the component that supplies power to a computer. More specifically, a power supply is typically designed to convert 100-120 V (North America and Japan) or 220-240 V (Europe, Asia and Australia) AC power from the power mains to usable low-voltage DC power (DC power supply) for the internal components of the computer. Some power supplies have a switch to change between 230 V and 115 V. Other models have automatic sensors that switch input voltage automatically, or are able to accept any voltage between those limits. Manufacturers of Computer Power Supplies include: Apevia, Axpertec, Cooler Master, Coolmax, Diablo Tek, OCZ, PC Power & Cooling, Ultra, and others.

The most common computer power supplies are built to conform with the ATX form factor, and laptop power supplies are also available. The most recent specification of the ATX standard is version 2.2, released in 2004. This enables different power supplies to be interchangeable with different components inside the computer. ATX power supplies also are designed to turn on and off using a signal from the motherboard, and provide support for modern functions such as the standby mode available in many computers. Computer power supplies typically come in different wattage sizes: less than 300W, 300W, 400W, 500W, 600W, 700W, 800W, 1000W. There are also SLI Certified PSUs. Laptops are a bit more specialized, and it is important to make sure that you purchase a laptop power supply compatible with your notebook computer.