Power Supplies - Showing 2353 - 2376 of 18293 Products
Refurbished: For R920 server power distribution board 0XXHJ5 CN-0XXHJ5 XXHJ5
- Model #: 726727820782
- Item #: 9SIVRWKKXB1519
- Return Policy: Nytke team Return Policy
Refurbished: 24Pin*2 650W Power Supply PS-4651-1ZT
- Model #: 753525945379
- Item #: 9SIVB8UKA99641
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300 310 410 10Pin 450W Power Supply DPS-450AB-71A ...
- Model #: 744623302492
- Item #: 9SIVB8UKCV8272
- Return Policy: Magicpower Return Policy
Refurbished: PSL130-AD-H Power Supply S5624P, S5648P Switch
- Model #: 703454718452
- Item #: 9SIVB8UKAJ6273
- Return Policy: Magicpower Return Policy
Refurbished: For R2W-6500P 500W + 500W Redundant Power Supply
- Model #: 726727728347
- Item #: 9SIVRWKKXA2713
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FSP500-30AS 500W 1U Power Supply NUC
- Model #: 716837091691
- Item #: 9SIVB8UKX61140
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DS1200DC-3-004 Server 48V DC Power Supply ex4500
- Model #: 792597727063
- Item #: 9SIVB8UKX32613
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V Power Module PVSE 400/24-40 PVSE 400 24-40
- Model #: 759950242779
- Item #: 9SIVB8UKDA8830
- Return Policy: Magicpower Return Policy
Refurbished: 1200W Power Supply PAC-1K2WA-F
- Model #: 753525943955
- Item #: 9SIVB8UKAA5338
- Return Policy: Magicpower Return Policy
Refurbished: For XPS 8100 8910 8920 AC460AD-0/01 HU460AM-01 WC1T4 Power Supply
- Model #: 752804572602
- Item #: 9SIVRWKKXA2143
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For N2POWER 3.3V 5V 12V 160W Power Supply ...
- Model #: 759950246067
- Item #: 9SIVB8UKDA9359
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP500-50WCB 500W 2U Industrial Control Power Supply ...
- Model #: 716837091653
- Item #: 9SIVB8UKX61124
- Return Policy: Magicpower Return Policy
Refurbished: R6515/R7515/R6525//R7525 Server Power 2400W M63JN
- Model #: 722954730665
- Item #: 9SIVB8UKAA5649
- Return Policy: Magicpower Return Policy
Refurbished: 1600W Server Power Supply D1600E-S1 F1600E-S0 95HR5 T4GCW D5W1N
- Model #: 722954736186
- Item #: 9SIVB8UKAA6214
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for GW-CRPS550 550W
- Model #: 731029999487
- Item #: 9SIVRWKKXD1144
- Return Policy: Nytke team 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: JPSU-650W-AC-AFO For QFX5100 EX4550 740-041741
- Model #: 722954722776
- Item #: 9SIVB8UKAA6926
- Return Policy: Magicpower Return Policy
Refurbished: Power Module LSWM1AC300 PSR300-12A2 GPR300-12A2H
- Model #: 703454717745
- Item #: 9SIVB8UKAJ6220
- Return Policy: Magicpower Return Policy
Refurbished: PSU For HP DX2718 2310 DX2318 250W Power Supply ATX-250-12Z ...
- Type: ATX
- Model #: 703454727409
- Item #: 9SIVSYTKUT7783
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: KHACHIMO Power Supply For MURATA 12V 250W Power Supply MVAC250-12F
- Model #: 759950240515
- Item #: 9SIVB8UKDA0381
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Optiplex 790 990 3010 7010 9010 240W Power Supply AC240ES-01 ...
- Model #: 745635675000
- Item #: 9SIVB8UKDA0195
- Return Policy: Magicpower Return Policy
Refurbished: D12-240P2A Universal PCC002 PS-4241-2HF DPS-240AB-3 B Small Power ...
- Model #: 722954987861
- Item #: 9SIVB8UKAA6475
- Return Policy: Magicpower Return Policy
Refurbished: ISR4431 4451 Series DC Power Module PWR-4430-DC
- Model #: 753525986334
- Item #: 9SIVB8UKAA8560
- Return Policy: Magicpower Return Policy
Refurbished: For 1U Power Supply Industrial Control SD3560 560W
- Model #: 703454718339
- Item #: 9SIVB8UKAJ6281
- 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.
