Power Supplies - Showing 2017 - 2040 of 17942 Products
Refurbished: KHACHIMO NV-175 175W Power Supply NV1-4G5TTH-F
- Model #: 759950246371
- Item #: 9SIVB8UKDA9389
- Return Policy: Magicpower Return Policy
Refurbished: SPR2C620 SPR1C620 Array Networks APV 3520 5200 620W Switching Power ...
- Model #: 753525948585
- Item #: 9SIVB8UKAA0032
- Return Policy: Magicpower Return Policy
Refurbished: For TDK-Lambda HWS300-24 HWS300-24/HD HWS300-48/H
- Model #: 752804577720
- Item #: 9SIVRWKKXB2179
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for NSP6F-220P-S13 Industrial Control Equipment Machine Power Supply
- Model #: 792597985760
- Item #: 9SIVB8UKX57389
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U CPU8Pin*2 500W Power Supply DPS-500AB-5 B ...
- Model #: 744623312958
- Item #: 9SIVB8UKD19603
- Return Policy: Magicpower Return Policy
Refurbished: For FSP250-50GUB FSP100-50GUB FSP150-50GUB FELX Small 1U Power ...
- Model #: 752804579878
- Item #: 9SIVRWKKXB2523
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for ATX-1270GA1 700W power supply, tested and shipped
- Model #: 792597717101
- Item #: 9SIVRWKKXD6702
- Return Policy: Nytke team Return Policy
Refurbished: R2CU6551A 1+1 Server Power Supply I620-G15
- Model #: 703454718933
- Item #: 9SIVB8UKAJ6325
- Return Policy: Magicpower Return Policy
Refurbished: For 7000 5000MT Power Supply 500W 3910 F3J97 NC77H T685J 1756V ...
- Model #: 726727729337
- Item #: 9SIVRWKKXA2969
- Return Policy: Nytke team Return Policy
Refurbished: 5000 175W Power Supply 01K9862 01K9869 DPS-175GB A
- Model #: 703454716120
- Item #: 9SIVB8UKAJ6061
- Return Policy: Magicpower Return Policy
Refurbished: For DL160g5 AC-063-1 A Power Backplane 450349-001 453652-001
- Model #: 726727725582
- Item #: 9SIVRWKKXA2686
- Return Policy: Nytke team Return Policy
Refurbished: FP2 48V 3KW FRONT END RECT HE 380875 Original For Eltek Power Supply ...
- Model #: 722954737404
- Item #: 9SIVB8UKAA6363
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3010 7010 9010 790 390 SFF Power Supply H240AS-00 AC240AS-00
- Model #: 792597728145
- Item #: 9SIVB8UKX32960
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-704P-1R PWS-504P-1R PWS-703P-1R PWS-504D-240 Power ...
- Model #: 752804574347
- Item #: 9SIVRWKKXB1879
- Return Policy: Nytke team Return Policy
Refurbished: For ARTESYN switch power supply CSU550AP-3-100 550W
- Model #: 703454722008
- Item #: 9SIVB8UKAJ6669
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U IPC X79 X99 24Pin+10Pin+8Pin 500W Switching Power Supply ...
- Model #: 744623301655
- Item #: 9SIVB8UKCV8190
- Return Policy: Magicpower Return Policy
Refurbished: 5802 00JA873 Expansion Cabinet Power Supply
- Model #: 722954722394
- Item #: 9SIVB8UKAA6879
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 1U power supply FSP270-60LE 500W FLEX small chassis NAS desktop ...
- Model #: 716837089858
- Item #: 9SIVB8UKX60462
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For EMACS 1+1 220W Power Supply R1U2-5220V4H ...
- Model #: 726099222429
- Item #: 9SIVB8UKCU6278
- Return Policy: Magicpower Return Policy
Refurbished: PCle 3.0 Poe Switching Power Supply STL2APCAA 03031SNT
- Model #: 753525945799
- Item #: 9SIVB8UKA99658
- Return Policy: Magicpower Return Policy
Refurbished: DPS-180UB A 200W Server 1U MINI ATX Power Supply
- Model #: 722954733253
- Item #: 9SIVB8UKAA5890
- Return Policy: Magicpower Return Policy
Refurbished: For S26113-E590-V50-01 DPS-250AB-99A 250W power supply
- Model #: 752804579731
- Item #: 9SIVRWKKXB2466
- Return Policy: Nytke team Return Policy
Refurbished: For 3Y YM-2301H YH-5301C HAR Server Redundant Power Module 300W
- Model #: 722954728204
- Item #: 9SIVSY0KUS4010
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: EX4500 EX4500-PWR1-AC-FB EX4500-PWR1-AC-BF DS1200-3-002 ...
- Model #: 753525957808
- Item #: 9SIVB8UKAA9015
- 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.
