Power Supplies - Showing 2113 - 2136 of 17938 Products
Refurbished: EFRP-300 Disk Power Module 300W
- Model #: 722954737084
- Item #: 9SIVB8UKAA6332
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PWS-781-1S Server Redundant Power Supply 12V/780W Switched ...
- Model #: 792597721498
- Item #: 9SIVRWKKXD8000
- Return Policy: Nytke team Return Policy
Refurbished: V1500B-IWN 24V75A For ELTEK VALERE Power Supply
- Model #: 753525947649
- Item #: 9SIVB8UKA99952
- Return Policy: Magicpower Return Policy
Refurbished: For API4FS38 15R7998 5786 5787 7031-T24 Power Supply
- Model #: 726727730517
- Item #: 9SIVRWKKXA3272
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 12V 13A 156W Power Supply DPSN-150BP DF
- Model #: 745635674843
- Item #: 9SIVB8UKDA0231
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DPS-220TB A B C Video recorder 8SATA monitoring small power ...
- Model #: 745635673358
- Item #: 9SIVB8UKD64737
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply DS-KAA8202-Y
- Model #: 759950240539
- Item #: 9SIVB8UKDA0389
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For GST-H150S24-M Switch Power Supply 24V-6A
- Model #: 722954732553
- Item #: 9SIVB8UKAA5857
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For B2500 Workstation Power Supply 600W 300-1667-03 W600GC3
- Model #: 716837095538
- Item #: 9SIVB8UKX62599
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SA5212M4 server GW-CRPS550 550W power supply
- Model #: 716837091295
- Item #: 9SIVB8UKX61039
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FSP Small 1U 400W Switching Power Supply FSP400-60FGGBA ...
- Model #: 744623310008
- Item #: 9SIVB8UKD12068
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3Y SA5212H2 720W Switching Power Supply YM-2721E
- Model #: 744623314709
- Item #: 9SIVB8UKD21868
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CA2000-0020 G2 CA4030-0201 G1
- Model #: 759950241246
- Item #: 9SIVB8UKDA0469
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-5411B 405W Redundant Power Supply Module 9274CSU-0010
- Model #: 792597708987
- Item #: 9SIVRWKKXD3844
- Return Policy: Nytke team Return Policy
Refurbished: Almost New Power Supply ENERMAX MODU 82+ 625W Power Supply ...
- Model #: 703454715062
- Item #: 9SIVSY0KUV4636
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For 23-0000092-02 6505/6510 5100 switching power supply TDPS-150BB A
- Model #: 726099251368
- Item #: 9SIVRWKKXD1513
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for RD540 Delta DPS-800AB-21 A Server Redundant Power Supply 800W
- Model #: 792597725762
- Item #: 9SIVRWKKXD9480
- Return Policy: Nytke team Return Policy
Refurbished: For LAMBDA NNS30-15 15V 3.4A Power Frequency Linear Regulated Power ...
- Model #: 724780778248
- Item #: 9SIVB8UKAA7634
- Return Policy: Magicpower Return Policy
Refurbished: DPS-525AB-3A Z440 Workstation Power Supply 525W 753084-001 ...
- Model #: 722954729096
- Item #: 9SIVB8UKAA5516
- Return Policy: Magicpower Return Policy
Refurbished: DL380G3 DC Power 400W 274,401-001 251,942-002 DD-3401-1C1
- Model #: 722954734588
- Item #: 9SIVB8UKAA6075
- Return Policy: Magicpower Return Policy
Refurbished: For 6287 21P4437 pSeries650 7038-6M2 1100WW P650 Power Supply
- Model #: 726727725957
- Item #: 9SIVRWKKXA2675
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 5796 Power Supply 7314-G30 300W 00FW759 44V4294 DPS-300AB
- Model #: 792597712977
- Item #: 9SIVRWKKXD4833
- Return Policy: Nytke team Return Policy
Refurbished: XL160-12 CS (XL160-3) For N2power 400013-01-7 160W AC-DC Power Supply
- Model #: 753525954562
- Item #: 9SIVB8UKAA0197
- Return Policy: Magicpower Return Policy
Refurbished: PWS-1K41F-1R 1400W Server Power Supply
- Model #: 753525949131
- Item #: 9SIVB8UKAA0123
- 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.
