Power Supplies - Showing 1897 - 1920 of 17939 Products
Refurbished: KHACHIMO Power Supply For 12V62.5A 750W RSP-750 RSP-750-12
- Model #: 759950247972
- Item #: 9SIVB8UKDF9464
- Return Policy: Magicpower Return Policy
Refurbished: M4000 M5000 2200W Power Supply AA23990 300-2011-02
- Model #: 703454716908
- Item #: 9SIVB8UKAJ6090
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply NLP65-3300 100-24VAC
- Model #: 753525990607
- Item #: 9SIVB8UKAA7921
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For XP fleXPower For X9-3R5G1P1W1W-000002
- Model #: 759950244094
- Item #: 9SIVB8UKDA9123
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For 45W8086 31P1582 31P1452 31P1707 31P1665 31P1661
- Model #: 716837095545
- Item #: 9SIVB8UKX62602
- Return Policy: Magicpower Return Policy
Refurbished: KRD057-FJ77 FPF07P-AC110-220D Power Supply
- Model #: 753525985955
- Item #: 9SIVB8UKAA8503
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for YH-5721-XAB06R YM-2721A YM-2721E
- Model #: 716837083252
- Item #: 9SIVB8UKX57512
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 14 pin power supply HK380-16FP PCB037 HK280-23FP
- Model #: 716837089902
- Item #: 9SIVB8UKX60482
- Return Policy: Magicpower Return Policy
Refurbished: For NEMIC-LAMBDA GE01 Power Supply For GE-01 AC INPUT
- Model #: 753525989328
- Item #: 9SIVB8UKAA7713
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for NPR48-3G communication power supply 48V50A
- Model #: 792597719204
- Item #: 9SIVRWKKXD7519
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For TDK-Lambda NV1-4G5FFH
- Model #: 759950244179
- Item #: 9SIVB8UKDA9107
- Return Policy: Magicpower Return Policy
Refurbished: Veriton E450 D650 D850 X4660G 6Pin 180W Power Supply FSP180-10TGBAA ...
- Model #: 753525935332
- Item #: 9SIVB8UKA99338
- Return Policy: Magicpower Return Policy
Refurbished: For Sun Fire V40Z Server Power Supply 760W 370-6916 SP555-3A
- Model #: 722954725975
- Item #: 9SIVB8UKAA7267
- Return Policy: Magicpower Return Policy
Refurbished: ASTEC 750W Power Supply 7001541-J000 341-0363-01 R250-PSU2-750W
- Model #: 753525936360
- Item #: 9SIVB8UKA99438
- Return Policy: Magicpower Return Policy
Refurbished: For FSP 460W Power Supply FSPAX460-PFL01 FSPAX460-PFL
- Model #: 703454717165
- Item #: 9SIVB8UKAJ6141
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for GE Power NE085AC32ATEZ 24-34V 2725W Switching Power Supply
- Model #: 792597719792
- Item #: 9SIVRWKKXD7627
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DD301M12-1M10 300W power supply
- Model #: 792597723621
- Item #: 9SIVRWKKXD8772
- Return Policy: Nytke team Return Policy
Refurbished: For P520 P620 P720 1000W 5P50V03189 FSK001 Power Supply
- Model #: 752804578833
- Item #: 9SIVRWKKXB2400
- Return Policy: Nytke team Return Policy
Refurbished: PWR-C5-1KWAC Power Module 341-100788-02 for C9200 Switch
- Model #: 753525983968
- Item #: 9SIVB8UKAA9072
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for YM-2501Q YM-2501QCR 500W Power Supply
- Model #: 792597712748
- Item #: 9SIVRWKKXD4772
- Return Policy: Nytke team Return Policy
Refurbished: 242100.410 For SMARTPACK S DC 10-75V Power Module
- Model #: 724780181192
- Item #: 9SIVB8UKA98764
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 60W For X1F-60V X1F2-60V
- Model #: 759950248856
- Item #: 9SIVB8UKDF9564
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 253W Power Supply DPS-253AB A 3AC00595800
- Model #: 744623304366
- Item #: 9SIVB8UKCW6216
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO C9300 C9300L 440W Power Supply NXA-PDC-440W-PI ...
- Model #: 759950241796
- Item #: 9SIVB8UKDA8716
- 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.
