Power Supplies - Showing 2113 - 2136 of 17990 Products
Refurbished: 1PCS for ACE-816AP-L 150W Industrial Server Power Supply
- Model #: 726099252389
- Item #: 9SIVRWKKXD1809
- Return Policy: Nytke team Return Policy
Refurbished: For 800W V7000 G2 2076-24F V3500 Power Supply 01AC550 01AC307
- Model #: 726099254048
- Item #: 9SIVRWKKXD2056
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO FSP 24Pin 500W Power Supply FSP500-60WSA PC6001 ...
- Model #: 744623315201
- Item #: 9SIVSY0KUT3884
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For HAT160900257WO Power Supply For CUC-09H T
- Model #: 753525990584
- Item #: 9SIVB8UKAA7914
- Return Policy: Magicpower Return Policy
Refurbished: For Server Power Supply R1IA2871A 875W
- Model #: 722954724695
- Item #: 9SIVB8UKAA7146
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply 500W FSP500-20TGBAA 6P + 4P + 8P
- Model #: 716837089612
- Item #: 9SIVB8UKX60464
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO KD02906-1100 PFT847-30
- Model #: 745635674041
- Item #: 9SIVB8UKD64818
- Return Policy: Magicpower Return Policy
Refurbished: For Server Power Supply PWS-521-1H 520W 24PIN 1U
- Model #: 753525985894
- Item #: 9SIVB8UKAA8480
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply AD550M3.3-3C1
- Model #: 753525942736
- Item #: 9SIVB8UKAA5173
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1200W Power Supply PWS-1K22A-1R
- Model #: 759950243615
- Item #: 9SIVB8UKDA9042
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V Power Supply 6GK5008-0BA10-1AB2
- Model #: 759950246654
- Item #: 9SIVB8UKDA9397
- Return Policy: Magicpower Return Policy
Refurbished: For U1A-F10300-DRB 300W Module Power Supply
- Model #: 726727731460
- Item #: 9SIVRWKKXA3358
- Return Policy: Nytke team Return Policy
Refurbished: New Switching Power Supply S8FS-G10024C For 100W 24V AC100240V 4.5A
- Model #: 753525990539
- Item #: 9SIVB8UKAA7947
- Return Policy: Magicpower Return Policy
Refurbished: For R610 power supply S26113-E470-V50 V20 fs214u400wsw
- Model #: 726727734256
- Item #: 9SIVRWKKXA4194
- Return Policy: Nytke team Return Policy
Refurbished: PHD3KS54-CD power module
- Model #: 722954721489
- Item #: 9SIVSY0KUS9173
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for P920 Server Power Supply DPS-1400EB A 54Y8978 1400W
- Model #: 792597713622
- Item #: 9SIVRWKKXD4935
- Return Policy: Nytke team Return Policy
Refurbished: ASR9000 Series Switches 341-0518-01 250W ASR-920-PWR-D
- Model #: 753525957228
- Item #: 9SIVB8UKAA8979
- Return Policy: Magicpower Return Policy
Refurbished: SYPM4KI For Schneider For APC Symmetra-LX UPS Power Supply
- Model #: 753525949803
- Item #: 9SIVB8UKAA0147
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For FSP 420W For FSP420-20RDB
- Model #: 759950248672
- Item #: 9SIVB8UKDF9541
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for C220 M3B Power Supply 341-0490-02 PS - 2651-1 - LF ...
- Model #: 792597709663
- Item #: 9SIVRWKKXD4111
- Return Policy: Nytke team Return Policy
Refurbished: For P1S-5200V 1U 200W Industrial Computer Small Power Supply Server
- Model #: 722954736933
- Item #: 9SIVSYTKUT1220
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For 450W Z2 G5 G8 Desktop PA-3451-1HA Power Supply DPS-450AB-23A
- Model #: 752804578710
- Item #: 9SIVRWKKXB2404
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PWS-1K04A-1R server, power supply
- Model #: 792597723171
- Item #: 9SIVRWKKXD8793
- Return Policy: Nytke team Return Policy
Refurbished: JPSU-650W-AC-AFO For QFX5100 EX4550 740-041741
- Model #: 722954722776
- Item #: 9SIVB8UKAA6926
- 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.
