Power Supplies - Showing 2353 - 2376 of 18350 Products
Refurbished: KHACHIMO 250W Switching Power Supply MIN-6251P
- Model #: 744623306339
- Item #: 9SIVB8UKD01962
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module HRS850-9000C F
- Type: ATX
- Model #: 703454739891
- Item #: 9SIVSY0KUT2618
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for HAC250P-490(E) CPCI Power Supply HAC250P-490(E)
- Model #: 792597985548
- Item #: 9SIVB8UKX57254
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 740-053351 JPSU-850W-DC-AFI Power Supply 850W QFX5100
- Model #: 716837084174
- Item #: 9SIVB8UKX57683
- Return Policy: Magicpower Return Policy
Refurbished: For PE690 Workstation Power Supply WS490 NPS-1000ABA ND285
- Model #: 726727728552
- Item #: 9SIVRWKKXA2701
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ITX Micro POS 200W Switching Power Supply P4-250T
- Model #: 744623303512
- Item #: 9SIVB8UKCW6116
- Return Policy: Magicpower Return Policy
Refurbished: For FSP450-60GHS NAS Server FLEX Small 1U Chassis Power Supply 450W
- Model #: 722954728624
- Item #: 9SIVB8UKAA5421
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 150W LWP-F315 Power Supply LWP-F315 LWP320 LWP330 ...
- Model #: 744623311456
- Item #: 9SIVB8UKD12235
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3880 3881 3681 3881 Power supply AC260EBM-00 H260EBM-00
- Model #: 716837091899
- Item #: 9SIVB8UKX61127
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 23R9722 23R9723 5619 80GB/160GB DAT160 46C2688 46C2689
- Model #: 792597984510
- Item #: 9SIVB8UKX57088
- Return Policy: Magicpower Return Policy
Refurbished: X326M X325 Power Supply API3FS10 74P4349 74P4348 39Y7167 39Y7166
- Model #: 722954725692
- Item #: 9SIVB8UKAA7248
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 250W Power Supply F250AD-00 L250AD-00 HU250AD-00 ...
- Model #: 744623299150
- Item #: 9SIVB8UKCU6593
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DCS-7050X 7820QR PWR-500AC-R DPS-495CB-1 A 00160-03 Power ...
- Model #: 792597712359
- Item #: 9SIVRWKKXD4746
- Return Policy: Nytke team Return Policy
Refurbished: For FSP350-601U Standard 1U Server Industrial Control Power Supply ...
- Model #: 722954732546
- Item #: 9SIVB8UKAA5853
- Return Policy: Magicpower Return Policy
Refurbished: For NS-5400-PWR-AC Firewall Module Power Supply
- Model #: 726727731958
- Item #: 9SIVRWKKXA3394
- Return Policy: Nytke team Return Policy
Refurbished: For GPAD201M5-1F switching power adapter 4.6V0-30A special power supply ...
- Model #: 703454721865
- Item #: 9SIVB8UKAJ6665
- Return Policy: Magicpower Return Policy
Refurbished: For LSWM1AC300/5AC300 PSR300-12A2/12A Power Modules
- Model #: 726727774788
- Item #: 9SIVRWKKXA4359
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 80plus Gold 2011 1366 1U 400W Switching Power Supply FS9030
- Model #: 744623317229
- Item #: 9SIVB8UKD64629
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ACE-A130C 300W industrial computer power supply
- Model #: 716837090977
- Item #: 9SIVB8UKX60874
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ITX Flex Nas Small 1U Full Modular 80plus Gold K39 K35 S3 M41M24 ...
- Model #: 744623300177
- Item #: 9SIVB8UKCU6665
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module W1PA04FB0
- Model #: 703454718995
- Item #: 9SIVB8UKAJ6349
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For Cherokee/GE Power Supply SP590 SP590-1A
- Model #: 759950240652
- Item #: 9SIVB8UKDA0391
- Return Policy: Magicpower Return Policy
Refurbished: FSP 180W Switching Power Supply FSP180-20AD
- Model #: 753525941975
- Item #: 9SIVB8UKAA5112
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Used On WS-C4948-S/E Series Switches PWR-C49-300DC-F
- Model #: 724780778200
- Item #: 9SIVB8UKAA7629
- 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.
