Power Supplies - Showing 841 - 864 of 18757 Products
Dell Optiplex 3020 7020 9020 Precision T1700 PowerEdge T20 Power Supply 365W T1M43 ...
- Model #: T1M43
- Item #: 9SIV1W8G9X8320
- Return Policy: The Best Part Inc. Return Policy
SH-300ATX Sharp 300 Watts ATX Power Supply
- Model #: sh-300atx
- Item #: 9SIV1W8CYE2705
- Return Policy: The Best Part Inc. Return Policy
240W ThinkStation E31 PSU
- Model #: 54y8901
- Item #: 9SIV1W8AWG2739
- Return Policy: The Best Part Inc. Return Policy
Inwin Development IPS350CQ20H HASWELL Ready 350w ATX PSU Cases IP-S350CQ2-0 H
- Model #: LB00MHYLPOM
- Item #: 9SIVARYH6Z8308
- Return Policy: Nature Return Policy
Altronix Corporation - Altronix Smp3 Proprietary Power Supply "Product Category: Power ...
- Model #: LB00PB0VEQS
- Item #: 9SIVARYH6X7420
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255W Power Supply Replacement for Dell Optiplex 580 760 780 960 980 DT F255E-01 ...
- Model #: SAB0C32MT5NV
- Item #: 9SIVARYK4X1110
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Seasonic Focus SGX-650 650W 80+ Gold SFX 12 V/ATX 12 V Full Modular Compact 125 mm Size ...
- Model #: LB07JVQQK69
- Item #: 9SIVARYH6X5073
- Return Policy: Nature Return Policy
Altronix ALTV2416ULX Power Supply 16 Fuse 24Vac @ 7A
- Model #: LB0006ZKVU8
- Item #: 9SIVARYH6Y9833
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MW Mean Well DRP-480-24 24V 20A 480W Single Output Industrial DIN RAIL with PFC Function ...
- Model #: LB072TSQMCQ
- Item #: 9SIVARYH6Z7334
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CableMod C-Series Pro ModMesh Sleeved 8-pin PCI-e Cable for Corsair RM Black ...
- Model #: LB08GJRGC11
- Item #: 9SIVARYH6Z1050
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Watchguard Technologies Power Supply Firebox T30 and T50 (us)
- Model #: LB01DYW3W2S
- Item #: 9SIVARYH701976
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Sparkle Power 80Plus Silver 500W ATX12V Power Supply with Active PFC SPI500A8BB
- Fans: 1 x 80 mm
- Model #: LB06XSNG6Y1
- Item #: 9SIVARYH6Y7363
- Return Policy: Nature Return Policy
CyberPower CyberShield CS50U48V DC Power Supply - Q58613
- Model #: LB0071MYC5Y
- Item #: 9SIVARYH6Z0431
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MeanWell DR-15-15 15W 15V 1A Din-Rail Power Supply 100-240VAC-DC15V
- Model #: LB07FQ6Y9V9
- Item #: 9SIVARYH6Y0375
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Seasonic S12III 650 SSR-650GB3 650W 80+ Bronze ATX12V & EPS12V Direct Cable Wire ...
- Model #: LB07MWHRG99
- Item #: 9SIVARYH6W5917
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Enclosed Type 68W RID-65B Meanwell AC-DC Dual Output RID-65 Series MEAN WELL ...
- Model #: LB07CJQBY3T
- Item #: 9SIVARYH6Z8570
- Return Policy: Nature Return Policy
XP POWER - ECM40UT31 - AC-DC CONV, OPEN FRAME, 3 O/P, 40W, 5V, 12V, 12V
- Model #: LB005T7CLVK
- Item #: 9SIVARYH6Z5748
- Return Policy: Nature Return Policy
MW Mean Well RS-100-5 5V 16A 80W Single Output Switching Power Supply
- Model #: LB0180WGYOU
- Item #: 9SIVARYH6Y1529
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Frigidaire 241996358 Frigidare Power Supply Board Unit
- Model #: LB00MHINTPQ
- Item #: 9SIVARYH6Z5243
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IBM 00K8468 Power Supply 95 Watt For Use With Aptiva Model 2153 & Oth
- Model #: 00k8468
- Item #: 9SIV1W8AWG2383
- Return Policy: The Best Part Inc. Return Policy
HitLights 60 Watt LED Power Adapter, Lighting Transformers, Power Supply for LED Strip - 5 ...
- Model #: LB00HENQAMS
- Item #: 9SIVARYH6X4098
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Smartbuy 1000W LED Fan Silent PC ATX Power Supply PSU SATA 12V PCI-E w/Auto Fan Speed ...
- Model #: LB08PXYX568
- Item #: 9SIVARYH6X4086
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Whatsminer P222B Power Supply, 96% Power Efficiency PSU for 14V Whatsminer Miner Mining ...
- Model #: KB0BFFX4G3D
- Item #: 9SIVARYKD56289
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Seasonic FOCUS Plus 650 Platinum SSR-650PX 650W 80+ Platinum ATX12V & EPS12V Full ...
- Model #: LB074N8RG74
- Item #: 9SIVARYH6W7381
- 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.
