Power Supplies - Showing 1969 - 1992 of 17942 Products
Refurbished: 900W Power Supply 341-100455-01 A900-PWR-900D2
- Model #: 753525956979
- Item #: 9SIVB8UKAA8929
- Return Policy: Magicpower Return Policy
Refurbished: For HPE Gen10 865408-B21 866729-001 865398-001 865399-201 500W ...
- Model #: 753525987683
- Item #: 9SIVB8UKAA8765
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Solar Panel MPPT Single Phase Converter Power Optimizer M2640
- Model #: 792597717620
- Item #: 9SIVRWKKXD6872
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for IFRP-352 9272CPSU-0011 350W
- Model #: 792597708956
- Item #: 9SIVRWKKXD3964
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 3004D 3004AK1 48V50A
- Model #: 716837095521
- Item #: 9SIVB8UKX62595
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for H1U-6150P H1U-6200P H1U-6250P industrial computer power supply
- Model #: 716837086239
- Item #: 9SIVB8UKX58909
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U 300W Switching Power Supply P1S-5300V P1S-5180V ...
- Model #: 744623300344
- Item #: 9SIVB8UKCU6687
- Return Policy: Magicpower Return Policy
Refurbished: For 1400W power supply PS-2142-2L
- Model #: 726099253942
- Item #: 9SIVRWKKXD2072
- Return Policy: Nytke team Return Policy
Refurbished: 510S M420 PCH018 PA-1181-7M420 Small Case Power Supply 6+4 Pin
- Model #: 722954727733
- Item #: 9SIVB8UKAA7472
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 420W Switching Power Supply M1P-2420V
- Model #: 744623303253
- Item #: 9SIVB8UKCW6056
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO C6220 C6105 C6100 R910 1400W Switching Power Supply ...
- Model #: 744623307497
- Item #: 9SIVB8UKD06461
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for BAT1022BB MacroSAN MS3000 DS800-G25
- Model #: 716837097235
- Item #: 9SIVB8UKX62951
- Return Policy: Magicpower Return Policy
Refurbished: ETP48400-C4A1 Switching Power Supply Embedded System 48V400A
- Model #: 753525948943
- Item #: 9SIVB8UKAA0035
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For LVA350-UM12
- Model #: 759950243202
- Item #: 9SIVB8UKDA8943
- Return Policy: Magicpower Return Policy
Refurbished: 1U 180W Power Supply FLXA5181A 07EA
- Model #: 753525943597
- Item #: 9SIVB8UKAA5297
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-250AB-24 B 250W NAS Network Equipment Power Supply
- Model #: 726727722772
- Item #: 9SIVRWKKXA2336
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for Server Power Supply 1800W 4F3WN D1800E-S0 16th Gen R660 Power ...
- Model #: 792597727025
- Item #: 9SIVB8UKX32597
- Return Policy: Magicpower Return Policy
Refurbished: 24V2.5A 60W LED Power Supply H60W-SD-24
- Model #: 753525941807
- Item #: 9SIVSYTKUV2013
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 0HD443 SC1435 Server Power 600W D600P-00 TDPS-600BB A HD443
- Model #: 722954734441
- Item #: 9SIVB8UKAA6066
- Return Policy: Magicpower Return Policy
Refurbished: 2100W Power Supply PWR-2KW-DC-V2 DHF-2DC-2100W-V 341-0400-02 ...
- Model #: 753525941845
- Item #: 9SIVB8UKAA5015
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For 5V 10A 50W Power Supply S8JX S8JX-G05005C
- Model #: 759950242649
- Item #: 9SIVB8UKDA8827
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply 12V1.5A Power Supply KB-5150
- Model #: 722954989094
- Item #: 9SIVB8UKAJ5572
- Return Policy: Magicpower Return Policy
Refurbished: SPS800-512TE-A SPS800-512TF-A D200 775W 840W Power Supply
- Model #: 722954726200
- Item #: 9SIVSY0KUT0397
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For Medical Ultrasound 2S2 PSU Power Supply S22 SonoScape
- Model #: 722954729195
- Item #: 9SIVB8UKAA5505
- 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.
