Power Supplies - Showing 2305 - 2328 of 17942 Products
Refurbished: 350W Switching Power Supply GPS-350AB B
- Model #: 753525944815
- Item #: 9SIVB8UKA99567
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZHR483KG communication power supply ZHR484KG 5G 50A75A
- Model #: 716837095385
- Item #: 9SIVB8UKX62429
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-1K62P-1R 1620W Server Redundant Power Module
- Model #: 726727816389
- Item #: 9SIVRWKKXB0647
- Return Policy: Nytke team Return Policy
Refurbished: For 775595-B21 775592-001 830219-001 775593-201 G9 900W Power ...
- Model #: 752804571865
- Item #: 9SIVRWKKXA2073
- Return Policy: Nytke team Return Policy
Refurbished: 290W 9020 3020 Power supply, 8+4PIN, HCTRF B290EM-01, P2W4R KGF74
- Model #: 722954733635
- Item #: 9SIVB8UKAA5938
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 15.7V 4A Power Supply SR92A720 SR 92A720
- Model #: 759950245510
- Item #: 9SIVB8UKDA9338
- Return Policy: Magicpower Return Policy
Refurbished: For 3573-L4U 3573-L2U TS3200 TS3100
- Model #: 726727776980
- Item #: 9SIVRWKKXB0117
- Return Policy: Nytke team Return Policy
Refurbished: ASA 55885-X 1200W AC Power Supply For ASA5585-PWR-AC
- Model #: 753525988482
- Item #: 9SIVB8UKAA7664
- Return Policy: Magicpower Return Policy
Refurbished: For FSA035 GW-CRPS550-2H switch regulated server power supply 240V3.5A
- Model #: 703454720639
- Item #: 9SIVB8UKAJ6559
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO S200 760W Switching Power Supply DS760SL-3
- Model #: 744623313856
- Item #: 9SIVB8UKD21757
- Return Policy: Magicpower Return Policy
Refurbished: DPS-500YB B 500W 1U Fully Tested,High Quality
- Model #: 724780182496
- Item #: 9SIVB8UKA98933
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R48-2000E3 Communication Rectifier Module R48-2000E3
- Model #: 792597717330
- Item #: 9SIVRWKKXD6874
- Return Policy: Nytke team Return Policy
Refurbished: For DENSEI-LAMBDA 50W Power Supply For LWT50H-522
- Model #: 753525991567
- Item #: 9SIVB8UKAA8109
- Return Policy: Magicpower Return Policy
Refurbished: For Z440 Power Supply DPS-700AB-1 A 719795-005
- Model #: 752804579908
- Item #: 9SIVRWKKXB2520
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO R5 850W Power Supply HU850EF-00 48Y6D 048Y6D HK950-11PP
- Model #: 759950241345
- Item #: 9SIVB8UKDA0477
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP350-50RGSHM industrial computer power supply A5E43523091
- Model #: 792597985227
- Item #: 9SIVB8UKX57225
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ATX180-50HUC FSP180-50PLA
- Model #: 792597707317
- Item #: 9SIVRWKKXD3557
- Return Policy: Nytke team Return Policy
Refurbished: DZ300-20EU For Industrial Medical Equipment Power Supply +48V8A +5V2A
- Model #: 724780779023
- Item #: 9SIVB8UKAA6696
- Return Policy: Magicpower Return Policy
Refurbished: For HPG9 800W DC Power Supply 735051-401 735040-001 720480-B21
- Model #: 752804578000
- Item #: 9SIVRWKKXB2269
- Return Policy: Nytke team Return Policy
Refurbished: For SAK560L-F4 560W Network Equipment Power Supply
- Model #: 726727722826
- Item #: 9SIVRWKKXA2328
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for ZXF20 S300 YM-4461A Power Module 460W CP-1289R2
- Model #: 716837090632
- Item #: 9SIVB8UKX60838
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP800-20ERM FSP800-50ERS 800W server power supply
- Model #: 716837084914
- Item #: 9SIVB8UKX58447
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO T5810 T7810 T7610 T7910 1300W Power Supply H1300EF-02 ...
- Model #: 759950240058
- Item #: 9SIVB8UKDA0346
- Return Policy: Magicpower Return Policy
Refurbished: 10 graphics cards 6+2p dual cpu8+8p gold half module 1250w single 12v ...
- Model #: 753525987737
- Item #: 9SIVB8UKAA8776
- 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.
