Power Supplies - Showing 2377 - 2400 of 17938 Products
Refurbished: KHACHIMO Power Supply For FSP 300W Power Supply FSP300-70PFL(SK) ...
- Model #: 759950249310
- Item #: 9SIVB8UKDF9585
- Return Policy: Magicpower Return Policy
Refurbished: A7000 S700 S300 E2600I W4600I 130W Switching Power Supply HKF1301-3B ...
- Model #: 753525944839
- Item #: 9SIVB8UKA99574
- Return Policy: Magicpower Return Policy
Refurbished: For CONDOR 225W Power Supply GPC225-28G
- Model #: 703454715079
- Item #: 9SIVB8UKAJ5897
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 341-0503-01 A0 750W N55-PAC-750W
- Model #: 753525957129
- Item #: 9SIVB8UKAA8939
- Return Policy: Magicpower Return Policy
Refurbished: power supply iMP1-3Q0-3W0-1L0-00 CT PDAS power supply
- Model #: 703454721339
- Item #: 9SIVB8UKAJ6590
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for YGEAO758AM YGEA0758AM-6R01S10 757.6W Power Supply
- Model #: 716837085768
- Item #: 9SIVB8UKX58644
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Digital 110V/220V 650W Switching Power Supply SD-700U ...
- Model #: 744623311241
- Item #: 9SIVB8UKD12161
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 1U FSP500-60WS1 500W server industrial control power supply, dual ...
- Model #: 792597716760
- Item #: 9SIVRWKKXD6697
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 460W Switching Power Supply DPS-460DB-9 A S26113-E575-V53 ...
- Model #: 744623304021
- Item #: 9SIVB8UKCW6177
- Return Policy: Magicpower Return Policy
Refurbished: For ST-400R server equipment redundant power
- Model #: 726727721867
- Item #: 9SIVRWKKXA2156
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R4850N2 communication power supply 48V50A
- Model #: 716837093954
- Item #: 9SIVB8UKX61955
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS power supply for P1A-Q40300-D-F2 test well
- Model #: 792597715015
- Item #: 9SIVRWKKXD6087
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R4850G2 48V50A 3000W power supply
- Model #: 716837094739
- Item #: 9SIVB8UKX62293
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For Emacs CRPS 400W Switching Power Supply M1S-3400V
- Model #: 744623302164
- Item #: 9SIVB8UKCV8199
- Return Policy: Magicpower Return Policy
Refurbished: OceanStor S5600 840W Switching Power Supply SPS840-512QV-A
- Model #: 753525943672
- Item #: 9SIVB8UKAA5279
- Return Policy: Magicpower Return Policy
Refurbished: For CSU500B Communication Power Monitoring Module ZXDU68 T601V5.0
- Model #: 722954726767
- Item #: 9SIVB8UKAA7335
- Return Policy: Magicpower Return Policy
Refurbished: For Z400 Power Supply DPS-475CB-1 A 468930-001 480720-001
- Model #: 726099251528
- Item #: 9SIVRWKKXD1479
- Return Policy: Nytke team Return Policy
Refurbished: For 15200 500W EVM-5003-00 Hard Disk Cabinet Power Supply
- Model #: 726727722642
- Item #: 9SIVRWKKXA2249
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Small Standard 1U -5V 250W Switching Power Supply ENH-0625A ...
- Model #: 744623307404
- Item #: 9SIVB8UKD06424
- Return Policy: Magicpower Return Policy
Refurbished: Server Power Supply PWS-920P-1R PWS-920P-SQ 920W
- Model #: 724780777968
- Item #: 9SIVB8UKAA7594
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RH1288H V5 2288H V5 900W Switching Power Supply ...
- Model #: 744623305301
- Item #: 9SIVB8UKD01872
- Return Policy: Magicpower Return Policy
Refurbished: SCXI-1120 181695F-01 For NATIONAL INSTRUMENTS Data Acquisition ...
- Model #: 753525986259
- Item #: 9SIVB8UKAA8581
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 48/2000HE/241115.105 communication power supply
- Model #: 792597721931
- Item #: 9SIVRWKKXD8308
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For Flatpack2 2000W 48V BF 24115.110SC
- Model #: 753525989090
- Item #: 9SIVB8UKAA7716
- 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.
