Power Supplies - Showing 1009 - 1032 of 11999 Products
Dell 79WPJ ATX12V Power Supply
- Model #: 79WPJ
- Item #: 9SIV1W87PX0907
- Return Policy: The Best Part Inc. Return Policy
PFC Function Enclosed 300W 15V 20A SP-320-15 Meanwell AC-DC Single Output SP-320 MEAN ...
- Model #: LB01814EKGG
- Item #: 9SIVARYH6Y1527
- Return Policy: Nature Return Policy
Mean Well SPV-300-24 Power Supply T69775
- Model #: LB005T8YTQY
- Item #: 9SIVARYH6Y9461
- Return Policy: Nature Return Policy
IBM 41N3105 Power Supply - 225 Watt For Thinkcentre
- Model #: 41N3105
- Item #: 9SIV1W87N60550
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AeroCool Integrator 850 W Power Supply Unit - Black
- Model #: LB0143D474O
- Item #: 9SIVARYH6Y8884
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Antec Basiq BP350 350 Watt Power Supply
- Model #: SAB000H9J3ZC
- Item #: 9SIVARYK4W8239
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IBM 49P2742 200W AC Power Supply
- Model #: 49P2742
- Item #: 9SIV1W87N60488
- Return Policy: The Best Part Inc. Return Policy
Mean Well HRPG-450-5 Switching Power Supply 450W 5V 90A /W PFC
- Model #: LB005T7H57K
- Item #: 9SIVARYH6Z4096
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Enclosed Type 100.8W 9V 11.2A NES-100-9 Meanwell AC-DC Single Output NES-100 Series ...
- Model #: LB06W5VKPNC
- Item #: 9SIVARYH6Z9834
- Return Policy: Nature Return Policy
Switching Power Supply MS-120-24 Small Size Series 24V4.5A
- Model #: SAB0CDFVR4Q3
- Item #: 9SIVARYK4X2371
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Raidmax 535W 80 Plus White Certified Power Supply RX-535AW-T
- Model #: LB08FNFSWBY
- Item #: 9SIVARYH6Y1506
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Bogen BG-SPS2410 24V@1A Power Supply White Box
- Model #: LB00PVUE1YU
- Item #: 9SIVARYH701260
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IN WIN IP-S300FF1-0 H 300W TFX12V v2.31 Power Supply/IP-S300FF1-0 H /
- Model #: LB00KHKQ9E4
- Item #: 9SIVARYH6Y6747
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Dell G185T Dell 235 Watt Power Supply For Optiplex 760 Sff
- Model #: G185T
- Item #: 9SIV1736N22494
- Return Policy: Digitzy Return Policy
Lemincrash ATX 850W Full Modular 80Plus Gold Certified RGB 12V PC Power Supply ...
- Model #: SAB0C1GMD6Z5
- Item #: 9SIVARYK4W9946
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MEAN WELL Modular Medical Adapter 22.08W 24V 0.92A PM-20-24 Meanwell AC-DC SMPS ...
- Model #: LB00FRBTDAK
- Item #: 9SIVARYH6Y9452
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[PowerNex] Mean Well HRPG-150-5 5V 26A 130W Single Output with PFC Function Power ...
- Model #: LB01H335ARO
- Item #: 9SIVARYH701420
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CableMod C-Series Pro ModMesh Sleeved Cable Kit for Corsair RM Black Label/RMi/RMX ...
- Model #: LB0799DD2LD
- Item #: 9SIVARYH6Z1063
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Tycon Power Systems PSDIN-48-120W Industrial DIN Rail Power Supply 90-264VAC in 48V ...
- Model #: LB08HGHB7V7
- Item #: 9SIVARYH6Z9249
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Walrus Audio Aetos 8 Output Power Supply, Limited Edition Teal/Cream (Gear Hero Exclusive)
- Model #: LB07RZLPCT3
- Item #: 9SIVARYH6Y0377
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CableMod C-Series Pro ModMesh Sleeved 8-pin PCI-e Cable for Corsair RM Yellow ...
- Model #: LB08GJR6755
- Item #: 9SIVARYH6Z1018
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APC Rack Mount PDU, Metered 100V-120V/15A, (16) Outlets, 0U Vertical Rackmount ...
- Model #: LB00O1B5EB4
- Item #: 9SIVARYH6Z2897
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SilverStone Technology 650 Watt 80 Plus Bronze ATX PSU with Flat Black Cables ET650-B ...
- Model #: LB071V7SG45
- Item #: 9SIVARYH6Y6763
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Seasonic Ss-460Sgx, 460W Atx 24-Pin Power Supply
- Model #: ss-460SGX
- Item #: 9SIV1W8AWG2402
- Return Policy: The Best Part Inc. 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.
