Power Supplies - Showing 1993 - 2016 of 17940 Products
Refurbished: P750 Expansion Enclosure 5802 Power Supply DCA-T19 42R8429 45D9861 ...
- Model #: 722954732935
- Item #: 9SIVB8UKAA5905
- Return Policy: Magicpower Return Policy
Refurbished: LDA50F-24 Original Disassembly Switching Power Supply Board 24v/2.1A 50W
- Model #: 753525986297
- Item #: 9SIVB8UKAA8596
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for JPSU-850W-DC-AFI 740-053639 power supply
- Model #: 716837084112
- Item #: 9SIVB8UKX57705
- Return Policy: Magicpower Return Policy
Refurbished: For Switched Power Supply U1A-D10550-DRB-H 550W
- Model #: 722954731860
- Item #: 9SIVSY0KUS8881
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO 1060TI 2060TI 350W Switching Power Supply FSP350-50GMN ...
- Model #: 744623307053
- Item #: 9SIVB8UKD06334
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For 800W server power supply FSP800-29FN M5
- Model #: 792597703975
- Item #: 9SIVRWKKXD2428
- Return Policy: Nytke team Return Policy
Refurbished: For A128 Tape Library Power Supply 3-02742-03 M2357-YE PS2357-YE
- Model #: 722954724145
- Item #: 9SIVB8UKAA7077
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For Liteon SA5212M4 NF5280 8480 M4 500W Switching Power ...
- Model #: 744623301570
- Item #: 9SIVB8UKCV8158
- Return Policy: Magicpower Return Policy
Refurbished: 580W Power Supply HRD580-6600
- Model #: 753525941135
- Item #: 9SIVB8UKAA4978
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T5820 T7820 Power Supply 950W AC950EF-00 H950EF-00 WGCH4
- Model #: 716837093084
- Item #: 9SIVB8UKX61709
- Return Policy: Magicpower Return Policy
Refurbished: EFRP-S753 750W Server Power Supply Redundant Hot-swap
- Model #: 753525987690
- Item #: 9SIVB8UKAA8766
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For CWT SATA*4+IDE*4 250W Power Supply PSF250M-20
- Model #: 744623316031
- Item #: 9SIVB8UKD46451
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 1815 Power Supply DPS-250AB-44D B 89B 1515 + NAS
- Model #: 792597982264
- Item #: 9SIVB8UKX56673
- Return Policy: Magicpower Return Policy
Refurbished: 300-1568/1674 V240 N240 Server Power Module/AC ASTEC AA22770
- Model #: 722954734748
- Item #: 9SIVB8UKAA6043
- Return Policy: Magicpower Return Policy
Refurbished: For 02131116 PD100-12HD Communication Power Supply VAPEL 100W
- Model #: 703454720073
- Item #: 9SIVB8UKAJ6462
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 00AR301 00AR300 V7000 Battery 85Y5898
- Model #: 792597722365
- Item #: 9SIVRWKKXD8300
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 2600W Power Supply SRX5600-PWR-2520-AC DCJ26002-02P
- Model #: 759950244469
- Item #: 9SIVB8UKDA9193
- Return Policy: Magicpower Return Policy
Refurbished: R620 R720 750W power supply 5NF18 D750E-S1 S3
- Model #: 703454719992
- Item #: 9SIVB8UKAJ6444
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP1600-20FM 1600W server power supply
- Model #: 716837085065
- Item #: 9SIVB8UKX58382
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AC220V Only Switching Power Supply FM-AT48
- Model #: 744623316970
- Item #: 9SIVB8UKD64479
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for NF5460M4 NF8480 M4 Server DC FSP800-20ERM-LR 48V Power Supply
- Model #: 716837085720
- Item #: 9SIVB8UKX58626
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for EFRP-2553P01 Cage EFRP-553V1 Redundant Power Supply ...
- Model #: 792597711871
- Item #: 9SIVRWKKXD4631
- Return Policy: Nytke team Return Policy
Refurbished: LSUM1AC2500 Power Module CAR2512FPB-Z
- Model #: 703454717912
- Item #: 9SIVB8UKAJ6200
- Return Policy: Magicpower Return Policy
Refurbished: For R230 R240 Server Power P59VM P3G94 9J6JG AC250E D250E
- Model #: 792597702794
- Item #: 9SIVRWKKXD2192
- Return Policy: Nytke team 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.
