Power Supplies - Showing 1321 - 1344 of 17942 Products
19 C-HM/HM/PRO-25
- Model #: LB00HPR7IPG
- Item #: 9SIVSYTKWT7298
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Enclosed Type 132W 3.3V 40A LRS-200-3.3 Meanwell AC-DC Single Output LRS-200 Series ...
- Model #: LB06X9689JG
- Item #: 9SIVARYH6Z3183
- Return Policy: Nature Return Policy
HP 394982-001 450 Watt Power Supply For Proliant Dl320 G4
- Model #: 394982-001
- Item #: 9SIV1W87PX1112
- Return Policy: The Best Part Inc. Return Policy
Switching Power Supplies 5V7A 15V2.5A -5V0.5A -15V0.5A 82.5W
- Model #: LB005T7NS2Q
- Item #: 9SIVARYH703793
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MEAN WELL MW GS90A24-P1M 24V 3.75A 90W AC-DC Green Industrial Adaptor
- Model #: LB01817QBEW
- Item #: 9SIVARYH701481
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Power Supply (Delta Dtps-200Pb-109A) - 115-230Vac Input 45-66Hz
- Model #: 0950-3439
- Item #: 9SIV1W87N60647
- Return Policy: The Best Part Inc. Return Policy
LPT45 AC-DC CONV, Open Frame, 3 O/P, 40W, 5V, 15V, -15V
- Model #: LB00DLST1KI
- Item #: 9SIVARYH6Z7810
- Return Policy: Nature Return Policy
SPI Power Supply ATX-450PN-B204 450W ATX2.2 (12V) Ball Bearing Fan 20? 2xSATA ...
- Model #: LB004JUXRJ8
- Item #: 9SIVARYH6Y2513
- Return Policy: Nature Return Policy
Power Supply Replacement for HP PSU 400w Platinum Rated Lincs Sunflower Pavilion ...
- Model #: SAB0BHSXKNKW
- Item #: 9SIVARYK4X0475
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Dell Pw114 Dell 305 Watt Power Supply For Optiplex 760 960 Mt
- Model #: PW114
- Item #: 9SIV1W87N60121
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Best Shopper - Replacement Power Supply 661-7886 Compatible With iMac 27'' (Late ...
- Model #: LB07V1YT5R7
- Item #: 9SIVARYH6Y1995
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[PowerNex] Mean Well HRP-600-3.3 3.3V 120A 396W Single Output with PFC Function Power ...
- Model #: LB01H335AVA
- Item #: 9SIVARYH6Z2938
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Enermax Revolution DF 750W - 80 Plus Gold Certified PSU, Full-Modular Power Supply, ...
- Model #: LB07P6SJJN6
- Item #: 9SIVARYH6W9846
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PWS-1K27A-1R Power Supply 1000W/1200W
- Model #: TGM2-PWS-1K27A-1R
- Item #: 9SIVB99KMX1381
- Return Policy: Compiston Store Return Policy
HP 365W Redundant Power Supply Power Supply
- Model #: 532092-B21
- Item #: 9SIVSYTKUV1229
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
MW Mean Well HLG-240H-C1400A 179V 1400mA 250W Single Output LED Switching Power ...
- Model #: LB072J9785L
- Item #: 9SIVSY0KWY0175
- Return Policy: LiAnMengYuShangDian Return Policy
TDK LAMBDA DSP10-5 AC-DC Conv, DIN Rail, 1 O/P, 7.5W, 1.5A, 5V
- Model #: LB005S3UIW4
- Item #: 9SIVARYH6Z9252
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235W PC Power Supply, Durable and Long Life Power Supply for Desktop Computers
- Model #: SAB0C9YL5SKS
- Item #: 9SIVARYK4X2908
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CableMod C-Series Pro ModMesh Sleeved 8-pin PCI-e Cable for Corsair RM Black ...
- Model #: LB08GJQF5KQ
- Item #: 9SIVARYH6Z0438
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39Y7189-06 Ibm 670Watt Redundant Power Supply For Xseries X3550 P/N:
- Model #: LB00HJL9J2I
- Item #: 9SIVARYH703806
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Industrial Open Frame 141.6W 24V 5.9A EPP-200-24 Meanwell AC-DC EPP-200 MEAN WELL ...
- Model #: LB07C589RST
- Item #: 9SIVARYH6Y6745
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MEAN WELL RSP 1500W 56A Switching Power Supply RSP-1500-27 AC/DC Single Output Slim ...
- Model #: KB0D8K6TFVY
- Item #: 9SIVARYKD57145
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SparkFun Breadboard Power Supply Stick - 5V/3.3V
- Model #: LB07WPFXN58
- Item #: 9SIVARYH6Y7351
- Return Policy: Nature Return Policy
Enclosed Type 150W 15V 10A RS-150-15 Meanwell AC-DC Single Output RS-150 Series MEAN ...
- Model #: LB07C4ZWJP9
- Item #: 9SIVARYH6Z6222
- Return Policy: Nature 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.
