Power Supplies - Showing 2041 - 2064 of 17940 Products
Refurbished: KHACHIMO 8183 8320 8172 A50 S50 865 200W Power Supply API2PC23 ...
- Model #: 744623305677
- Item #: 9SIVB8UKD01923
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Power Supply CPCIAC-3U-300W 900-4002-20 02090028-02 ...
- Model #: 792597722686
- Item #: 9SIVRWKKXD8609
- Return Policy: Nytke team Return Policy
Refurbished: 6266 97P3867 97P5101 P615 Minicomputer Power 7000731-0000 700W
- Model #: 722954734410
- Item #: 9SIVB8UKAA6053
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For COMPUWARE 1000W Power Supply CPR-1021-9M1
- Model #: 744623314891
- Item #: 9SIVB8UKD21900
- Return Policy: Magicpower Return Policy
Refurbished: For R48-2000e3 48V 30A Communication Power Supply 2000W
- Model #: 722954727887
- Item #: 9SIVB8UKAA7439
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 400W DPS-400AB-12A Small 1U flex computer power supply
- Model #: 716837087892
- Item #: 9SIVB8UKX59614
- Return Policy: Magicpower Return Policy
Refurbished: 1100W FSK014 02JJ207 SP57A63890
- Model #: 753525934458
- Item #: 9SIVB8UKA99275
- Return Policy: Magicpower Return Policy
Refurbished: For M1K-2A00V 1000W Network Power Supply CHS-PWRAC-02-A
- Model #: 792597703661
- Item #: 9SIVRWKKXD2458
- Return Policy: Nytke team Return Policy
Refurbished: For S7500E LSQM1DC650 DC-PSR650-D 650W DC Power Supply SR66
- Model #: 703454718216
- Item #: 9SIVB8UKAJ6286
- Return Policy: Magicpower Return Policy
Refurbished: For LSPM2150A, PSR150-A, S5500-28F-EI S5800 Power Supply
- Model #: 726727723885
- Item #: 9SIVRWKKXA2452
- Return Policy: Nytke team Return Policy
Refurbished: PCB230 D13-300P1A Desktop 300W Power Supply 490 285 G2 G3 G4 570 Series
- Model #: 722954721779
- Item #: 9SIVB8UKAA6826
- Return Policy: Magicpower Return Policy
Refurbished: MSA2000 P2000 G2 545831-001 545764-001 575W
- Model #: 753525956252
- Item #: 9SIVB8UKAA8839
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 3020 7020 9020 MT Power Supply L290EM-00 AC290AM D290EM-00
- Model #: 792597707409
- Item #: 9SIVRWKKXD3596
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 5V40A 200W Switching Power Supply GW-EP200WV5AA-00
- Model #: 744623312057
- Item #: 9SIVB8UKD19627
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For N2POWER 3.3V 5V 12V 160W Power Supply ...
- Model #: 759950246067
- Item #: 9SIVB8UKDA9359
- Return Policy: Magicpower Return Policy
Refurbished: For PE6850 Redundant Power Supply 1470W HD435 XJ192 KJ001
- Model #: 726727728217
- Item #: 9SIVRWKKXA2707
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PowerVault 220S 221S 584W Switching Power Supply DPS-600FB A ...
- Model #: 744623303567
- Item #: 9SIVB8UKCW6135
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R1IA2651A 650W server power supply
- Model #: 716837091493
- Item #: 9SIVB8UKX61067
- Return Policy: Magicpower Return Policy
Refurbished: New For 48V 50A Power Supply For SMR3004D
- Model #: 753525991598
- Item #: 9SIVB8UKAA8119
- Return Policy: Magicpower Return Policy
Refurbished: For SP2-4230P 230W Control Power Supply
- Model #: 726727722406
- Item #: 9SIVRWKKXA2259
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for R2Z-6400P-R 400W power supply
- Model #: 792597982615
- Item #: 9SIVB8UKX56769
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 650W Switching Power Supply DPS-650QB A
- Model #: 744623313283
- Item #: 9SIVB8UKD21703
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 450W Switching Power Supply ATX-1245GA1
- Model #: 744623313313
- Item #: 9SIVB8UKD21710
- Return Policy: Magicpower Return Policy
Refurbished: P750 8233-E8B 1725W Power Supply 7001520-J000 74Y8431 74Y5811 ...
- Model #: 722954989858
- Item #: 9SIVB8UKAJ5643
- 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.
