Power Supplies - Showing 2185 - 2208 of 17941 Products
Refurbished: 1Pcs for EPMU03 communication power supply
- Model #: 716837094852
- Item #: 9SIVB8UKX62291
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for MKP160-28 28V 5.35A Switching Power Supply
- Model #: 792597720101
- Item #: 9SIVRWKKXD7635
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for B520E Power Supply PS-3251-01 DPS-250AB-71A FSP250-20AI
- Model #: 716837092872
- Item #: 9SIVB8UKX61512
- Return Policy: Magicpower Return Policy
Refurbished: 150W Power Supply AD151M12-1M1
- Model #: 753525946994
- Item #: 9SIVB8UKA99778
- Return Policy: Magicpower Return Policy
Refurbished: For server power supply 800W DPS-800AB-48 A JLAD1950000330
- Model #: 752804578260
- Item #: 9SIVRWKKXB2258
- Return Policy: Nytke team Return Policy
Refurbished: For HDS HUS150 Storage Cabinet Main Cabinet Dual Power Supply Dual ...
- Model #: 722954732874
- Item #: 9SIVB8UKAA5881
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for T5400 T5500 Power Supply H875EF-00 N875EF-00 875W 0J556T ...
- Model #: 792597711109
- Item #: 9SIVRWKKXD4382
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO S510 S560 S590 S710 S720 S770 M7121 M7100Z M7101Z 14Pin ...
- Model #: 744623300498
- Item #: 9SIVB8UKCU6791
- Return Policy: Magicpower Return Policy
Refurbished: 48V4000W 48V75A AC-DC power supply ZXD4000 V5.0
- Model #: 703454722534
- Item #: 9SIVB8UKAJ6732
- Return Policy: Magicpower Return Policy
Refurbished: XPS 8950 3910 T3660 M92DC 0M92DC 0MP23Y H750EPS-00 AC750EPS-00 ...
- Model #: 753525948189
- Item #: 9SIVB8UKA99972
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 03031MPJ STL2BATTA01 S5300 S5500 V3
- Model #: 792597708666
- Item #: 9SIVRWKKXD3974
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For FSP 360W Power Supply YM-2361E
- Model #: 759950240096
- Item #: 9SIVB8UKDA0362
- Return Policy: Magicpower Return Policy
Refurbished: N1000P-00 1000W Pre490 690 XPS700 WS490 NPS-1000 AB A ND285 Power ...
- Model #: 753525948516
- Item #: 9SIVB8UKAA0008
- Return Policy: Magicpower Return Policy
Refurbished: 1U GW-FLX250M 250W industrial computer server industrial power supply
- Model #: 703454721896
- Item #: 9SIVB8UKAJ6632
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply PWS-865-PQ 865W 8PIN
- Type: ATX
- Model #: 703454923573
- Item #: 9SIVSYTKUT3502
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For MRW-6350P-R 350W Industrial Control Power Module
- Model #: 722954731631
- Item #: 9SIVB8UKAA5738
- Return Policy: Magicpower Return Policy
Refurbished: For S3D-2K00V 2000W S3D-2K00V Power Supply
- Model #: 726727722987
- Item #: 9SIVRWKKXA2377
- Return Policy: Nytke team Return Policy
Refurbished: DS-8664N-I8 8608 8616 8632 64 32 Way 8-Bay Monitoring Main Video ...
- Model #: 722954727498
- Item #: 9SIVB8UKAA7433
- Return Policy: Magicpower Return Policy
Refurbished: FLATPACK2 48/3000 HE Communication Power Supply Rectifier Module ...
- Model #: 722954733161
- Item #: 9SIVT8HKWF2838
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1PCS for HWS300-5/WS Industrial Power Supply test well
- Model #: 792597714650
- Item #: 9SIVRWKKXD6079
- Return Policy: Nytke team Return Policy
Refurbished: YM-6521B 520W Original For 3Y Server Redundant Hot-swap Power Supply
- Model #: 753525932683
- Item #: 9SIVB8UKA99065
- Return Policy: Magicpower Return Policy
Refurbished: 80plus Bronze Flex Itx Nas Small 1U 350W Power Supply DPS-350AB-24 C ...
- Model #: 753525935905
- Item #: 9SIVB8UKA99407
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO S26113-E472-V50 NPS-180DB A equipment power supply
- Model #: 745635673976
- Item #: 9SIVB8UKD64790
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RQ940 NF8470M3 1600W Switching Power Supply R12-1K6P2A
- Model #: 744623305202
- Item #: 9SIVB8UKD01882
- 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.
