Power Supplies - Showing 2281 - 2304 of 18339 Products
Refurbished: 1pcs for BPS BPS-550SP industrial control power supply
- Model #: 792597983322
- Item #: 9SIVB8UKX56857
- Return Policy: Magicpower Return Policy
Refurbished: For 601689-001 SBPSFAN2FB Power Supply
- Model #: 752804573692
- Item #: 9SIVRWKKXB1714
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FSP250W SFX Power Supply
- Model #: 716837089803
- Item #: 9SIVB8UKX60494
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO NEC AIO i5 HM55 HM65 HM75 120W Power Supply DPS-120TB A ...
- Model #: 744623304946
- Item #: 9SIVB8UKCW6270
- Return Policy: Magicpower Return Policy
Refurbished: 600G3 SFF Power Supply PCC005 901764-004 901765-001 180w
- Model #: 722954733871
- Item #: 9SIVB8UKAA5981
- Return Policy: Magicpower Return Policy
Refurbished: C220 M3 Series Switches 341-0496-01 450W UCSC-PSU-450W
- Model #: 753525985191
- Item #: 9SIVB8UKAA9173
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600W Power Supply MP4-1E-1Q-NNN-00 73-540-0353
- Model #: 759950246579
- Item #: 9SIVB8UKDA9411
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MINI Chassis Desktop Power NAS
- Model #: 792597706143
- Item #: 9SIVRWKKXD3220
- Return Policy: Nytke team Return Policy
Refurbished: SA5212M4 Server I620-G20 I620-G10 Great Wall GW-CRPS550 550W Power ...
- Model #: 722954735752
- Item #: 9SIVB8UKAA6192
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Workstation P720 P520 690W Switching Power Supply DPS-690AB ...
- Model #: 744623313184
- Item #: 9SIVB8UKD21711
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For MH 5V12V24V 300W MH-300N-R3X
- Model #: 745635675031
- Item #: 9SIVB8UKDA0206
- Return Policy: Magicpower Return Policy
Refurbished: Switch Poe Power Supply 500W AD0500-48HS
- Model #: 722954733772
- Item #: 9SIVB8UKAA5947
- Return Policy: Magicpower Return Policy
Refurbished: LDA10F-24 Original Disassembly Switching Power Supply 24V/0.5A
- Model #: 753525987744
- Item #: 9SIVRTNKX43113
- Return Policy: Jiamayanonly Return Policy
Refurbished: For BLade100 B100 Workstation Power Supply 200W 370-4206-01 ...
- Model #: 726727816013
- Item #: 9SIVRWKKXB0441
- Return Policy: Nytke team Return Policy
Refurbished: For power supply DRA-60-12/24V constant current 60W adjustable module
- Model #: 703454721414
- Item #: 9SIVB8UKAJ6572
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply 232 196048A-01-RHPS232
- Model #: 759950242373
- Item #: 9SIVB8UKDA8805
- Return Policy: Magicpower Return Policy
Refurbished: MAP55-4004 For Industrial Medical Equipment Power ...
- Model #: 724780779351
- Item #: 9SIVB8UKAA6724
- Return Policy: Magicpower Return Policy
Refurbished: YM-2701Q YM-2701QA03R 12V 700W For 3Y Power Supply Server Redundant ...
- Model #: 724780183448
- Item #: 9SIVB8UKA99019
- Return Policy: Magicpower Return Policy
Refurbished: ECM40US24 Industrial Medical Power Module 24V 1.7A 40W MAX K13040664
- Model #: 753525949667
- Item #: 9SIVB8UKAA0140
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2U 600W Switching Power Supply ENH-2160-1
- Model #: 744623310879
- Item #: 9SIVB8UKD12118
- Return Policy: Magicpower Return Policy
Refurbished: 3850 Switch Power Supply PWR-C1-1100WAC High Quality
- Model #: 753525985023
- Item #: 9SIVB8UKAA9155
- Return Policy: Magicpower Return Policy
Refurbished: PWS-401-1R 400W Power Supply
- Model #: 753525949698
- Item #: 9SIVB8UKAA0152
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 5406zl switch power supply 875W J8712A DCJ9002-01P ...
- Model #: 745635674027
- Item #: 9SIVB8UKD64810
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600W Switching Power Supply ATX-1560GA1
- Model #: 744623307688
- Item #: 9SIVB8UKD06438
- 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.
