Power Supplies - Showing 2377 - 2400 of 17997 Products
Refurbished: KHACHIMO 1U 250W Switching Power Supply EFA-250
- Model #: 726099223150
- Item #: 9SIVB8UKCU6319
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DTQ1200AN12F12 HF20 HF40 HF60 AF40 AF60 Power Supply
- Model #: 792597708901
- Item #: 9SIVRWKKXD3978
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 80plus 1U 460W Power Supply FSP460-701UG FSP460-601U ...
- Model #: 744623314037
- Item #: 9SIVB8UKD21839
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 390 790 990 3010 9010 7010 275W Power Supply L275EM-00 ...
- Model #: 744623300672
- Item #: 9SIVB8UKCU6766
- Return Policy: Magicpower Return Policy
Refurbished: DPS-250AB-8 B S26113-E512-V50 270W Power Supply
- Model #: 753525948547
- Item #: 9SIVB8UKAA0016
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 300-2186-02 T5220 T5440 X4450 DC 660W
- Model #: 792597713400
- Item #: 9SIVRWKKXD4903
- Return Policy: Nytke team Return Policy
Refurbished: For 600W 24V 27A Power Supply S8JX-P60024CD
- Model #: 753525991673
- Item #: 9SIVB8UKAA8104
- Return Policy: Magicpower Return Policy
Refurbished: For SD-3200U 1U Server Power Supply
- Model #: 752804578734
- Item #: 9SIVRWKKXB2378
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO R920 M720 800W Switching Power Supply CPB09-043A ...
- Model #: 744623304335
- Item #: 9SIVB8UKCW6203
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for CPB09-043A R920 M720 Medical Power Supply S26113-E568-V70-01
- Model #: 716837085744
- Item #: 9SIVB8UKX58636
- Return Policy: Magicpower Return Policy
Refurbished: 510S PA-1261-7 Small Case Power Supply 260W 6+4 Pin
- Model #: 722954727351
- Item #: 9SIVSYTKUT4636
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 2960G-24/48TC 3750G-24TS-S Power Supply 341-0098-02
- Model #: 753525957211
- Item #: 9SIVB8UKAA8975
- Return Policy: Magicpower Return Policy
Refurbished: 2000W Power Supply DS2000-3
- Model #: 703454715468
- Item #: 9SIVB8UKAJ5908
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CP E SNT 100W 15V 6.6A 100W 7760052199
- Model #: 759950240065
- Item #: 9SIVB8UKDA0350
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for X4270 N4288 E450 Power Supply FSP500-20TGBAA D17-180P1A 500W
- Model #: 716837090267
- Item #: 9SIVB8UKX60616
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 078-000-021 850W SPS CX400 CX600 CX700 DMX
- Model #: 792597713226
- Item #: 9SIVRWKKXD4940
- Return Policy: Nytke team Return Policy
Refurbished: SB5800-08A Fiber Switch Power Supply SBPSFAN2FB 31741-06 Power Module
- Model #: 703454717400
- Item #: 9SIVB8UKAJ6138
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PSB400M-J3 400W Power Supply PSB400M-J3
- Model #: 792597722983
- Item #: 9SIVRWKKXD8450
- Return Policy: Nytke team Return Policy
Refurbished: For DAR850-4812A Switching Power Module PWR850A-POE
- Model #: 722954725319
- Item #: 9SIVB8UKAA7199
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AC220V Only Switching Power Supply FM-AT48
- Model #: 744623316970
- Item #: 9SIVB8UKD64479
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DA 24V 500W Power Supply BD-308
- Model #: 759950242304
- Item #: 9SIVB8UKDA8779
- Return Policy: Magicpower Return Policy
Refurbished: 0.45A 24V Power Supply For VAF1024 XOMM VAF1024 X0MM
- Model #: 753525989434
- Item #: 9SIVB8UKAA7752
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V Power Supply 6GK5008-0BA10-1AB2
- Model #: 759950245350
- Item #: 9SIVB8UKDA9274
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 800W Switching Power Supply LL1U800APFC
- Model #: 744623311982
- Item #: 9SIVB8UKD19648
- 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.
