Power Supplies - Showing 1993 - 2016 of 17940 Products
Refurbished: 1Pcs for R770 R7525 R670 Server Power Supply 800W D800E-S2 R98X5 17th ...
- Model #: 716837083757
- Item #: 9SIVB8UKX57608
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 12V38A 460W DPS-460MB A HSTNS-PD28 643954-101
- Model #: 792597706525
- Item #: 9SIVRWKKXD3211
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 400W Switching Power Supply SO-400EPS
- Model #: 744623307473
- Item #: 9SIVB8UKD06453
- Return Policy: Magicpower Return Policy
Refurbished: R710 A570P-01/A570P-00/C570A-S0 570W Server Power Supply
- Model #: 703454719527
- Item #: 9SIVB8UKAJ6403
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For 01AC307 01AC550 TDPS-800BB B 01LT778 01LT777
- Model #: 716837095927
- Item #: 9SIVB8UKX62608
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RQ940 NF8470M3 1600W Switching Power Supply R12-1K6P2A
- Model #: 744623305202
- Item #: 9SIVB8UKD01882
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP150-50FGNBI(M) 300T-SAB1 FSP250-50TAC FSP400-51AAC ...
- Model #: 716837087762
- Item #: 9SIVB8UKX59609
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3.3V3A 15W Power Supply ECL15US03-S ECL15US
- Model #: 759950245565
- Item #: 9SIVB8UKDA9308
- Return Policy: Magicpower Return Policy
Refurbished: ANSP3-250P-S20 Nonstop DC Power Supply
- Model #: 724780181536
- Item #: 9SIVB8UKA98799
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for H825EF-02 FT7T6 Workstation Power Supply 825W T5810 T7810 ...
- Model #: 726099251757
- Item #: 9SIVRWKKXD1504
- Return Policy: Nytke team Return Policy
Refurbished: 6282 6283 650W Switching Power Supply 11K0802 53P2399 11k0812 97P4025 ...
- Model #: 753525943931
- Item #: 9SIVB8UKAA5329
- Return Policy: Magicpower Return Policy
Refurbished: EMC 700-004751-0000 1080W Power Supply 071-000-569-03
- Model #: EMC 700-004751-0000 071-000-569-03
- Item #: 9SIVSYTKWT6598
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: KHACHIMO Rated 250W Switching Power Supply ATX-300SD
- Model #: 744623311579
- Item #: 9SIVB8UKD12245
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 241115.615DT DC Boost Power Supply Module FP2 DC/DC 42-75V ...
- Model #: 792597720842
- Item #: 9SIVRWKKXD7999
- Return Policy: Nytke team Return Policy
Refurbished: EPW50-48A Communication Power Supply Agility EPW50-48A
- Model #: 722954733499
- Item #: 9SIVB8UKAA5934
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-350TB K DPS-350TB D FSP500-701UN PLUTO-D3501PJ ...
- Model #: 716837087601
- Item #: 9SIVB8UKX59598
- Return Policy: Magicpower Return Policy
Refurbished: For S26113-E574-V53 DPS-800AB-1 A RX2540/RX2530 M1 800W Power ...
- Model #: 726727775518
- Item #: 9SIVRWKKXA5079
- Return Policy: Nytke team Return Policy
Refurbished: 1200W Switching Power Supply DPS-1200KB A 493299-001 493969-001
- Model #: 753525946369
- Item #: 9SIVB8UKA99734
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 200W Switching Power Supply PWS-201-1H
- Model #: 744623317175
- Item #: 9SIVB8UKD64511
- Return Policy: Magicpower Return Policy
Refurbished: PSU For 3Y 820W Switching Power Supply YM-2821F
- Model #: 753525935424
- Item #: 9SIVB8UKA99362
- Return Policy: Magicpower Return Policy
Refurbished: Hard Disk Recorder Monitoring Power Supply 7916HE-E4/7932HW-E4/7916N ...
- Model #: 722954727559
- Item #: 9SIVB8UKAA7405
- Return Policy: Magicpower Return Policy
Refurbished: For 460581-001 AG637-63601 EVA4400 EVA6300 power supply
- Model #: 726727821857
- Item #: 9SIVRWKKXB1603
- Return Policy: Nytke team Return Policy
Refurbished: R525 R512 G2 3Y YM-2451C 36001872 450W
- Model #: 753525957013
- Item #: 9SIVB8UKAA8901
- Return Policy: Magicpower Return Policy
Refurbished: 200 280G1 500 110 180W Power Supply 742317-001 751589-001 ...
- Model #: 753525945225
- Item #: 9SIVB8UKA99592
- 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.
