Power Supplies - Showing 2113 - 2136 of 17943 Products
Refurbished: For MAP55-4003 POWER-ONE
- Model #: 726727724288
- Item #: 9SIVRWKKXA2367
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply Used On 3750E Series Switches 341-0232-01 ...
- Model #: 753525984613
- Item #: 9SIVB8UKAA9140
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ITX 150W Switching Power Supply FSP150-50FGNBI
- Model #: 744623311555
- Item #: 9SIVB8UKD12236
- Return Policy: Magicpower Return Policy
Refurbished: Flex HK250-94FP Small 1U POS Power Supply
- Model #: 722954731716
- Item #: 9SIVB8UKAA5771
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y YM-2721A YM-2821A Server 2U Power Module 720W
- Model #: 722954728778
- Item #: 9SIVB8UKAA5439
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For R1V2-5275V4H R1V-2275 1U
- Model #: 752804572084
- Item #: 9SIVRWKKXA1996
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO M6300 75 6800 5050 4900 TS140 14Pin 180W Power Supply ...
- Model #: 744623308593
- Item #: 9SIVB8UKD06391
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for REO MFS 268 M DP24 621631
- Model #: 792597721719
- Item #: 9SIVRWKKXD8285
- Return Policy: Nytke team Return Policy
Refurbished: POWER 2050W Power Supply NE075AC24A
- Model #: 703454716816
- Item #: 9SIVB8UKAJ6107
- Return Policy: Magicpower Return Policy
Refurbished: For 7000 5000MT Power Supply 500W 3910 F3J97 NC77H T685J 1756V ...
- Model #: 726727729337
- Item #: 9SIVRWKKXA2969
- Return Policy: Nytke team Return Policy
Refurbished: Power Module PAC2000S54-CE
- Model #: 722954721816
- Item #: 9SIVB8UKAA6843
- Return Policy: Magicpower Return Policy
Refurbished: For SUN StorEdge 3310 3510 disk array cabinet power supply 370-6776 ...
- Model #: 703454721698
- Item #: 9SIVB8UKAJ6643
- Return Policy: Magicpower Return Policy
Refurbished: SP450-RP PWS-0045 450W Server Power Supply
- Model #: 722954722585
- Item #: 9SIVB8UKAA6905
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs For GW-CRPSHD1300D2 FRU 02JG065 SP57A14659 Server power supply ...
- Model #: 731029999326
- Item #: 9SIVRWKKXD1130
- Return Policy: Nytke team Return Policy
Refurbished: 1U 250W Power Supply FSP250-50PL
- Model #: 753525941562
- Item #: 9SIVB8UKAA5002
- Return Policy: Magicpower Return Policy
Refurbished: 3850-24XU 350W Power Supply PWR-C1-350WAC-P DPS-350AB-34 A ...
- Model #: 753525945621
- Item #: 9SIVB8UKA99638
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3710 3901 Power Supply 240W 865N6 H240EBS-00 AC240EBS-00
- Model #: 716837091608
- Item #: 9SIVB8UKX61154
- Return Policy: Magicpower Return Policy
Refurbished: 150W Switching Power Supply PAC150-WA
- Model #: 753525941678
- Item #: 9SIVB8UKAA4998
- Return Policy: Magicpower Return Policy
Refurbished: FLATPACK2 48/1400 25A TEC 241115.901 48V25A For ELTEK Power Supply
- Model #: 753525949315
- Item #: 9SIVB8UKAA0090
- Return Policy: Magicpower Return Policy
Refurbished: For DL580 G8 G9 1200W Server Power Supply 746073-001 748896 748287-B21
- Model #: 726727775327
- Item #: 9SIVRWKKXA4383
- Return Policy: Nytke team Return Policy
Refurbished: For FSP400-60PFB Industrial Control Power Supply ...
- Model #: 722954732171
- Item #: 9SIVB8UKAA5808
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Switching Power Supply MRT-6300P-R
- Model #: 744623317038
- Item #: 9SIVB8UKD64504
- Return Policy: Magicpower Return Policy
Refurbished: 24V10A 240W Rail Power Supply DRP024V240W1BN
- Model #: 703454716809
- Item #: 9SIVB8UKAJ6104
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for EFRP-553V3 power supply EFRP-2553B02 cage, another EFRP-553 ...
- Model #: 726099252228
- Item #: 9SIVRWKKXD1649
- Return Policy: Nytke team 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.
