Power Supplies - Showing 2377 - 2400 of 17940 Products
Refurbished: HSTNS-PR42 C7000 2650W Power Supply 700-013501-0000 732605-301 ...
- Model #: 724780182328
- Item #: 9SIVB8UKA98870
- Return Policy: Magicpower Return Policy
Refurbished: V9000 1300W Switching Power Supply 700-013496-0000 700-013496-0200 ...
- Model #: 753525944334
- Item #: 9SIVB8UKAA5348
- Return Policy: Magicpower Return Policy
Refurbished: For PS-2801-9LR Server 800W Power Supply
- Model #: 726727816587
- Item #: 9SIVRWKKXB0691
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DPU60D-N06A1 RRU Power Supply 3000W
- Model #: 716837095125
- Item #: 9SIVB8UKX62469
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For R24050G1 1500W
- Model #: 753525991109
- Item #: 9SIVB8UKAA8027
- Return Policy: Magicpower Return Policy
Refurbished: For LCM1500Q-T Switched Power Supply
- Model #: 752804577126
- Item #: 9SIVRWKKXB2166
- Return Policy: Nytke team Return Policy
Refurbished: FLEX Cutter Box Power Supply 69y5851 69y5836 69y5850 69y5806 ...
- Model #: 722954732843
- Item #: 9SIVB8UKAA5876
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PowerEdge 1550 240W Switching Power Supply DPS-202AB A ...
- Model #: 744623305028
- Item #: 9SIVB8UKD01861
- Return Policy: Magicpower Return Policy
Refurbished: For 50W 15V 3.4A Power Supply For S8FS-C05015
- Model #: 753525991390
- Item #: 9SIVB8UKAA8045
- Return Policy: Magicpower Return Policy
Refurbished: 00HV224RD350X RD450 RD550 RD650 550W Power Supply DPS-550AB-5
- Model #: 722954735790
- Item #: 9SIVB8UKAA6159
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P1N-6300P P1U-6150P P1U-6200P industrial computer power supply
- Model #: 716837086253
- Item #: 9SIVB8UKX58917
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V 13.9A 175W Power Supply CLC175US12 CLC175US
- Model #: 759950246487
- Item #: 9SIVB8UKDA9424
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 550W power supply U1A-P10550-DRB U1A-BATTERY ...
- Model #: 792597714476
- Item #: 9SIVRWKKXD5835
- Return Policy: Nytke team Return Policy
Refurbished: For r az1620 z3620 Junyi a410 all-in-one power supply GW-A150WV19 ...
- Model #: 752804579748
- Item #: 9SIVRWKKXB2481
- Return Policy: Nytke team Return Policy
Refurbished: For 341-0441-01 UCSB-PSU-2500ACPL AHF-2DC-2500W-PE Power Supply ...
- Model #: 726727776065
- Item #: 9SIVRWKKXA5049
- Return Policy: Nytke team Return Policy
Refurbished: 12V 2.5A 30W Power Supply For LCA30S-12
- Model #: 753525989700
- Item #: 9SIVB8UKAA7763
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For ELTEK X3750B1-VC
- Model #: 759950247743
- Item #: 9SIVB8UKDF9422
- Return Policy: Magicpower Return Policy
Refurbished: FSP 650W Switching Power Supply FSP650-50KPN
- Model #: 753525935561
- Item #: 9SIVB8UKA99374
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for CP2000DC54-PEZ switching power supply 2000W
- Model #: 792597723683
- Item #: 9SIVRWKKXD8914
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for CA05954-4570 DX100 S5
- Model #: 792597708482
- Item #: 9SIVRWKKXD3722
- Return Policy: Nytke team Return Policy
Refurbished: Optitlex 3020 7020 9020MT Power Supply L290AM AC290-00 H290AM-00
- Model #: 703454720318
- Item #: 9SIVB8UKAJ6486
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for I8000 Knife Box X0315 SP788 Module SP0788 Power Supply
- Model #: 792597727483
- Item #: 9SIVB8UKX32788
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DC 1300W Power Supply DPS-1300AB-7 D DPS-1300AB-7D
- Model #: 744623298740
- Item #: 9SIVB8UKCU6476
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for D06S 660S V270S Small Chassis Power Supply H220AS-01 L220AS-00
- Model #: 716837088936
- Item #: 9SIVB8UKX60127
- Return Policy: Magicpower Return Policy
Tips for Buying a Computer Power Supply Unit (PSU)
Introduction
A computer power supply is one of the most crucial components in a computer, as it is responsible for providing stable and regulated power for the system. If you are shopping for a computer power supply, finding the ideal one will require you to consider several important criteria. Those criteria include the size and form factor of the case, the wattage requirement of the system, efficiency, and your internal cabling preference.
Size Standards
Computer power supplies are available in a variety of different sizes and form factors. It is crucial that the power supply unit (PSU) you select matches the size requirements of your case and motherboard. If you have a Mini ITX case for example, you cannot utilize a standard ATX power supply. For more information about power supply form factors, see below.
- ATX
The standard power supply size that will fit most mid-size and full-size tower cases. Some micro ATX cases can utilize ATX power supplies as well. - Mini ITX
Mini ITX power supplies are designed specifically for mini ITX systems but may also fit other small form factor computer cases. - SFX
SFX computer power supplies are smaller than standard ATX PSUs and are meant for micro ATX and other small form factor computer cases. - TFX
Another small form factor computer power supply that is thinner to fit micro ATX, Mini ITX, and other smaller systems.
Wattage
A computer power supply’s wattage rating is a measurement of how much power it can provide to the hardware. When shopping for a power supply, you need to consider how much power your computer system requires. To calculate your system’s power requirement, add up the power draw for all the components.
Start with the motherboard and processor, and then include graphics cards, system memory, storage devices, and other expansion cards. For an even better estimate, you should include USB devices, internal fans, and other accessories. Once you have your estimate, try to find a computer power supply that is capable of at least that. For a larger safety margin, you should get a PSU that is well above that minimum.
Cable Management
There are two cable management options for computer power supplies, modular and non-modular. Modular cabling allows you to connect and disconnect internal power cables from the power supply itself, so you can avoid having unused cables and connectors dangling inside the case. Computer power supplies that feature modular cabling typically cost more than those without it.
Efficiency
The efficiency of a computer power supply is a ratio of how much power it provides and how much power it draws. For instance, a power supply that provides 200 watts of power but pulls 400 watts from a power outlet has a 200/400 or 50% efficiency ratio. The more efficient your computer power supply is, the less it will cost you to operate.
One metric you can use to gauge efficiency is what level of 80 PLUS® certification a power supply has, if it any. The different levels of 80 PLUS certification include 80 PLUS, 80 PLUS Bronze, 80 PLUS Silver, 80 PLUS Gold, 80 PLUS Platinum, and 80 PLUS Platinum. The most basic certification is 80 PLUS, which indicates an efficiency rating of at least 80%. The other certifications rank from Bronze to Titanium, with the latter being the highest attainable. If computer power supply efficiency is a big concern for you, try to find one with a high level of 80 PLUS certification.
