Power Supplies - Showing 1945 - 1968 of 17931 Products
Refurbished: 1Pcs for PWS-2K21A-BR 2200W 20 Node Server Power Supply
- Model #: 716837093053
- Item #: 9SIVB8UKX61698
- Return Policy: Magicpower Return Policy
Refurbished: For Power Supply For SUN 300-2143 Fire X4170 760W 7001497-J000
- Model #: 753525986440
- Item #: 9SIVB8UKAA8603
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module QC11CMUB
- Model #: 722954723537
- Item #: 9SIVT8HKWF3262
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 700W Switching Power Supply PWS-702A-1R
- Model #: 722954737893
- Item #: 9SIVSYTKUT6301
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For DPST-1200DB UCSC-PSU2V2-1200W V02 341-0472-02 Server Power ...
- Model #: 752804577294
- Item #: 9SIVRWKKXB2173
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for R4900 R4950 G3 PSR1200-12A-F S1161702358 Server Power Supply
- Model #: 792597724369
- Item #: 9SIVRWKKXD8924
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO TFX 10Pin 260W Switching Power Supply PA-2261-1
- Model #: 744623316857
- Item #: 9SIVB8UKD64481
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For S8VM 24V27A 600W Power Supply S8VM-60024C
- Model #: 759950248481
- Item #: 9SIVB8UKDF9470
- Return Policy: Magicpower Return Policy
Refurbished: PAC1500S12-BE high-power Server Power 1500W
- Model #: 722954733086
- Item #: 9SIVB8UKAA5919
- Return Policy: Magicpower Return Policy
Refurbished: M6412A 4G Fiber Controller AG638-60410 AG638-04500 461494-005
- Model #: 722954736414
- Item #: 9SIVB8UKAA6261
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 675W 12V55A 7001484-J000
- Model #: 792597705696
- Item #: 9SIVRWKKXD2882
- Return Policy: Nytke team Return Policy
Refurbished: For DL380 G6 G7 Server Power Supply DPS-460EB A HSTNS-PL14 511777-001
- Model #: 792597702909
- Item #: 9SIVRWKKXD2184
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 07H6590 31L7627 P670 P690 MDA-X Fan, Start, Power Supply, Module
- Model #: 792597712267
- Item #: 9SIVRWKKXD4745
- Return Policy: Nytke team Return Policy
Refurbished: Nexus7000 3000W Power Supply N7K-AC-3KW 700-010646-0000 ...
- Model #: 703454716205
- Item #: 9SIVB8UKAJ6046
- Return Policy: Magicpower Return Policy
Refurbished: UCS C200 CPB09-031A Server Power Supply R2X0-PSU2-650W-SB
- Model #: 722954730207
- Item #: 9SIVB8UKAA5613
- Return Policy: Magicpower Return Policy
Refurbished: FLATPACK2 48/1400 25A TEC 241115.901 48V25A For ELTEK Power Supply
- Model #: 753525949315
- Item #: 9SIVB8UKAA0090
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Z2 800 880 G4 G5 G6 4Pin 550W Power Supply PA-5551-1HA ...
- Model #: 744623301334
- Item #: 9SIVB8UKCV8111
- Return Policy: Magicpower Return Policy
Refurbished: For AC240AM-01 PCG001 04YXMF 3668 3669 3050 7050 SFF MT Power Supply
- Model #: 752804579823
- Item #: 9SIVRWKKXB2484
- Return Policy: Nytke team Return Policy
Refurbished: DC 800W Power Supply DPS-800AB-14 F DPS-800AB-14F
- Model #: 753525936353
- Item #: 9SIVSY0KUV6105
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For industrial computer power supply FSP ATX3500-65PA300W
- Model #: 703454721841
- Item #: 9SIVB8UKAJ6656
- Return Policy: Magicpower Return Policy
Refurbished: For FSP120-AFB FSP120-AFA FSP120-AFAN2-H3 round port 48V2.2 * 5.5
- Model #: 726727819182
- Item #: 9SIVRWKKXB1331
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for power supply FSP270-60LE ITX cash register
- Model #: 792597982820
- Item #: 9SIVB8UKX56760
- Return Policy: Magicpower Return Policy
Refurbished: EX4300-48P 550W Power Supply JPSU-550-DC-AFO 740-046875 DPS-550RB ...
- Model #: 703454716311
- Item #: 9SIVB8UKAJ6022
- Return Policy: Magicpower Return Policy
Refurbished: For CWT PSD250M PSD200M 36V48V72V Wide Voltage Power Supply
- Model #: 722954721373
- Item #: 9SIVB8UKAA6768
- 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.
