Power Supplies - Showing 1993 - 2016 of 17941 Products
Refurbished: PJA600F-24 600W INPUT AC100-240V 50-60Hz 7.5A OUTPUT 24V 25A ...
- Model #: 753525948868
- Item #: 9SIVB8UKAA0050
- Return Policy: Magicpower Return Policy
Refurbished: For Super Micro PWS-706P-1R 1U Server Redundant Power Supply 700W
- Type: Power Supply
- Model #: PWS-706P-1R
- Item #: 9SIVSYTKUT0683
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1500 24V/50A 230Vac For ELTEK Power Supply Module 241114.300
- Model #: 753525954920
- Item #: 9SIVB8UKAA0289
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 4.5V40A 200W Switching Power Supply MCP200WS-4.5A-C
- Model #: 744623310527
- Item #: 9SIVB8UKD12121
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Industrial computer power supply FSP300-70PFU FSP250-70PFU ...
- Model #: 716837096542
- Item #: 9SIVB8UKX62816
- Return Policy: Magicpower Return Policy
Refurbished: Server Power Supply for DL380 G4 406393-501 321632-501 367238-001 ...
- Model #: 753525984965
- Item #: 9SIVB8UKAA9178
- Return Policy: Magicpower Return Policy
Refurbished: For GW-CRPS550 12V 45A 550W Server Power Supply
- Model #: 703454720103
- Item #: 9SIVB8UKAJ6465
- Return Policy: Magicpower Return Policy
Refurbished: For GW-CRPS550B N Server Power Supply GW-CRPS550S-2H 550W
- Model #: 752804578048
- Item #: 9SIVRWKKXB2225
- Return Policy: Nytke team Return Policy
Refurbished: 48V50A Switching Power Supply PSU4850A
- Model #: 753525935851
- Item #: 9SIVB8UKA99389
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for A1289 980W Power Supply FS8001 614-0435 614-0454 DPS-980BB
- Model #: 716837082859
- Item #: 9SIVB8UKX57495
- Return Policy: Magicpower Return Policy
Refurbished: For 078-000-192-00 078-000-155 XT380/480/680
- Model #: 726727821369
- Item #: 9SIVRWKKXB1566
- Return Policy: Nytke team Return Policy
Refurbished: Industrial Power Supply FSP400-60AGGBQ 400W Can Replace FSP400-60PFI
- Model #: 753525933932
- Item #: 9SIVB8UKA99217
- Return Policy: Magicpower Return Policy
Refurbished: UCS C240 M3 1200W Power Supply UCSC-PSU2-1200 DPST-1200CB A ...
- Model #: 753525943115
- Item #: 9SIVB8UKAA5257
- Return Policy: Magicpower Return Policy
Refurbished: 1680W Power Supply PWS-1K68A-1R
- Model #: 753525944518
- Item #: 9SIVB8UKAA5375
- Return Policy: Magicpower Return Policy
Refurbished: 2100W Power Supply PWR-2KW-DC-V2 DHF-2DC-2100W-V 341-0400-02 ...
- Model #: 753525941845
- Item #: 9SIVB8UKAA5015
- Return Policy: Magicpower Return Policy
Refurbished: For GW-525ZN ATX Computer Host Desktop Power Supply 425W Large Fan
- Model #: 722954727054
- Item #: 9SIVB8UKAA7356
- Return Policy: Magicpower Return Policy
Refurbished: For 7000850-Y000 HJ364 PowerEdge 6800 Server Power Supply 1570W
- Model #: 752804580478
- Item #: 9SIVRWKKXB2546
- Return Policy: Nytke team Return Policy
Refurbished: For CPCI-A-3U-300C telkoor CPCI ac -3u-300W CPCIac-3u-300
- Model #: 726727723977
- Item #: 9SIVRWKKXA2549
- Return Policy: Nytke team Return Policy
Refurbished: PSU For FSP 400W Switching Power Supply FSP400-60EPN
- Model #: 753525936155
- Item #: 9SIVB8UKA99453
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V 100W For LEP100F LEP100F-24
- Model #: 759950247514
- Item #: 9SIVB8UKDF9381
- Return Policy: Magicpower Return Policy
Refurbished: For PSL-6C00V CT machine power supply server power supply
- Model #: 726099253102
- Item #: 9SIVRWKKXD1846
- Return Policy: Nytke team Return Policy
Refurbished: PowerEdge 6850 1470W Power Supply SP574 SP574-Y01A PS-2142-1D DU764 ...
- Model #: 753525941333
- Item #: 9SIVB8UKAA4964
- Return Policy: Magicpower Return Policy
Refurbished: For PSC100-A-1 Disassembly Power Supply
- Model #: 752804574019
- Item #: 9SIVRWKKXB1788
- Return Policy: Nytke team Return Policy
Refurbished: PT-4503 RG-S3750-24 2150-48 S2026 Power Supply N45-30D3V3 ...
- Model #: 722954988936
- Item #: 9SIVB8UKAJ5556
- 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.
