Power Supplies - Showing 2305 - 2328 of 17990 Products
Refurbished: 1pcs for PWS-2K04A-1R Server Power Supply 2000W
- Model #: 792597985517
- Item #: 9SIVB8UKX57242
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 350W Power Supply 04HPGF 0G192T 0G846G 0J515T 0D341T ...
- Model #: 744623310596
- Item #: 9SIVB8UKD12104
- Return Policy: Magicpower Return Policy
Refurbished: For AT power supply SPI-300G SPI-250G SD-250AT power supply
- Model #: 752804579441
- Item #: 9SIVRWKKXB2444
- Return Policy: Nytke team Return Policy
Refurbished: T350G6/R350G6 Server Power Supply Delta DPS-700FB D 36001030
- Model #: 722954730931
- Item #: 9SIVB8UKAA5703
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply 73-551-0030I 73-551-0048I
- Model #: 759950242717
- Item #: 9SIVB8UKDA8854
- Return Policy: Magicpower Return Policy
Refurbished: 1600W Power Supply EMC-S-1600ADE00 071-000-701-01
- Model #: 753525946253
- Item #: 9SIVB8UKA99696
- Return Policy: Magicpower Return Policy
Refurbished: For M470 D700A0 S26113-E536-V70-01 Server Power Supply
- Model #: S26113-E536-V70-01
- Item #: 9SIVRWKKXB2620
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for P5 P6 560Q P561 VRM 74Y4908 44V5648 VRM Regulator Module
- Model #: 792597713110
- Item #: 9SIVRWKKXD4850
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 3020 7020 9020 255W Power Supply L255AS-00 AC255ES-00/01 ...
- Model #: 744623308180
- Item #: 9SIVB8UKD06271
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X3650 DPS-835AB A 24R2730 39Y7377 39Y7378 Server power supply ...
- Model #: 792597724826
- Item #: 9SIVRWKKXD9228
- Return Policy: Nytke team Return Policy
Refurbished: For Juniper EX4300 Power Supply JPSU-350-AC-AFI 350W
- Model #: 722954727382
- Item #: 9SIVB8UKAA7387
- Return Policy: Magicpower Return Policy
Refurbished: For ALS304C-2338-F 350W Equipment Power Supply 73-125-411
- Model #: 726727731873
- Item #: 9SIVRWKKXA3401
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs For GW-CRPS800C 800W server power supply
- Model #: 792597703531
- Item #: 9SIVRWKKXD2282
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS Power Supply for Server PSR550-A 550W
- Model #: 792597723867
- Item #: 9SIVRWKKXD8784
- Return Policy: Nytke team Return Policy
Refurbished: R630/R730/R730XD/R740/R640/T630 750W Epp Power Supply
- Model #: 722954735950
- Item #: 9SIVB8UKAA6218
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R510 910 T710 750W Power Supply 7001531-J000 7001531-J100 ...
- Model #: 744623302102
- Item #: 9SIVB8UKCV8222
- Return Policy: Magicpower Return Policy
Refurbished: For 5000 Power Module DPS-350MB K REV: 01
- Model #: 726727722734
- Item #: 9SIVRWKKXA2261
- Return Policy: Nytke team Return Policy
Refurbished: For NEC i5 host, power supply DPS-120TB A MSPSU120N-DMA
- Model #: 726727728774
- Item #: 9SIVRWKKXA2963
- Return Policy: Nytke team Return Policy
Refurbished: YM-5411B 405W PSU For 3Y Server Redundant Power Supply Module ...
- Model #: 753525947502
- Item #: 9SIVB8UKA99901
- Return Policy: Magicpower Return Policy
Refurbished: 48V/3000W 241119.100 For Eltek 48V 3000W Communication Power Supply
- Model #: 753525954524
- Item #: 9SIVB8UKAA0228
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-500LB A Server Power Module 500W Power Supply AF500B00438
- Model #: 792597708536
- Item #: 9SIVRWKKXD3819
- Return Policy: Nytke team Return Policy
Refurbished: For DS650-3-006 850W DS650-3 extreme x650 switching power supply
- Model #: 726099253072
- Item #: 9SIVRWKKXD1847
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For FSP 420W For FSP420-20RDB
- Model #: 759950248672
- Item #: 9SIVB8UKDF9541
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AIO HTPC FLEX Small 1U K39 400W Switching Power Supply ...
- Model #: 744623314372
- Item #: 9SIVB8UKD21832
- 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.
