Power Supplies - Showing 2041 - 2064 of 17940 Products
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA HFE1600 1600W Power Supply ...
- Model #: 759950241758
- Item #: 9SIVB8UKDA8748
- Return Policy: Magicpower Return Policy
Refurbished: Waterproof Power Supply For EUM-240S670DG 240W 18-57V
- Model #: 753525991383
- Item #: 9SIVB8UKAA8041
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for OptiPlex7000 5000 3000MT 3020 R13 R14 T150 Power Supply 400W ...
- Model #: 792597982103
- Item #: 9SIVB8UKX56659
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 500W Switching Power Supply API3FS43
- Model #: 744623303079
- Item #: 9SIVB8UKCW6077
- Return Policy: Magicpower Return Policy
Refurbished: PowerEdge PE2650 Server Power Supply DPS-500CBA J1540
- Model #: 722954731013
- Item #: 9SIVB8UKAA5686
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1158W Power Supply IMP4-2E0-2Q0-1L0-00 73-540-9556I
- Model #: 759950244698
- Item #: 9SIVB8UKDA9189
- Return Policy: Magicpower Return Policy
Refurbished: For ST-352UAG-05E 2U 350W 2U Industrial Computer Server Firewall Security ...
- Model #: 703454719732
- Item #: 9SIVB8UKAJ6438
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-981-1S redundant power 980W
- Model #: 726727722765
- Item #: 9SIVRWKKXA2260
- Return Policy: Nytke team Return Policy
Refurbished: X445 X440 Server Power 74P4354 74P4353 DPS-1200DB A
- Model #: 722954734618
- Item #: 9SIVB8UKAA6087
- Return Policy: Magicpower Return Policy
Refurbished: PWR-3900-DC 341-0240-01 DC Power Supply for 3945/K9 3925 Routers
- Model #: 753525934267
- Item #: 9SIVB8UKA99204
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AIO HTPC FLEX Small 1U K39 400W Switching Power Supply ...
- Model #: 744623314372
- Item #: 9SIVB8UKD21832
- Return Policy: Magicpower Return Policy
Refurbished: DPS-230LBAPB PC7066 Pc7041 API4PC49 Host Power Supply 230W
- Model #: 722954727719
- Item #: 9SIVB8UKAA7464
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RD650 RD550 RD450 RD350 450W Switching Power Supply FSD062
- Model #: 744623307527
- Item #: 9SIVB8UKD06423
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For COMPUWARE 1000W Power Supply CPR-1021-9M1
- Model #: 744623314891
- Item #: 9SIVB8UKD21900
- Return Policy: Magicpower Return Policy
Refurbished: T7810 T5810 T7910 H1300EF-02 1300W T31JM V5K16
- Model #: 753525985467
- Item #: 9SIVB8UKAA9228
- Return Policy: Magicpower Return Policy
Refurbished: For UNIS 526T X500T X020T X700T 17L Power Supply DPS-750UB A 1PCS
- Model #: 726727732474
- Item #: 9SIVRWKKXA3517
- Return Policy: Nytke team Return Policy
Refurbished: T610 R710 870W Power Supply NPS-885AB A N870P-S0 A870P-00 0YFG1C
- Model #: 722954724886
- Item #: 9SIVB8UKAA7128
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3060 5060 7040 7060 6Pin 200W Power Supply D200EPS-00 ...
- Model #: 745635674782
- Item #: 9SIVB8UKDA0208
- Return Policy: Magicpower Return Policy
Refurbished: For PAC300D1205 Rated 300W Small Chassis B515 B520 Power Supply TFX ...
- Model #: 752804580027
- Item #: 9SIVRWKKXB2528
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 580 760 780 960 980 DT 255W Switching Power Supply AC255AD-00 ...
- Model #: 744623301815
- Item #: 9SIVB8UKCV8157
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FSP 2U 700W Switching Power Supply FSP700-60WS2 ...
- Model #: 744623315478
- Item #: 9SIVB8UKD46419
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for ACE-A130B industrial computer equipment power supply
- Model #: 792597983131
- Item #: 9SIVB8UKX56876
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for eNSP3-450P eNSP3-450P-S20-H1V Power Supply 450W
- Model #: 792597724468
- Item #: 9SIVRWKKXD9084
- Return Policy: Nytke team Return Policy
Refurbished: S5500T S3900-M200 Storage Battery Fan BBU Module STLZ01CFBA 0235G6ES
- Model #: 703454720820
- Item #: 9SIVB8UKAJ6535
- 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.
