Power Supplies - Showing 2137 - 2160 of 17941 Products
Refurbished: For PFE1100-12-054NA331 AC/DC CONVERTER 12V 5V 1100W
- Model #: 722954731778
- Item #: 9SIVB8UKAA5749
- Return Policy: Magicpower Return Policy
Refurbished: For RSAF 600S24 Switching Power Supply
- Model #: 752804578857
- Item #: 9SIVRWKKXB2314
- Return Policy: Nytke team Return Policy
Refurbished: PS-3181-01 PS-3181-03 Universal HK280-23FP PCB037 PCB038 14-Pin ...
- Model #: 722954722516
- Item #: 9SIVB8UKAA6877
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for S4875G1 solar power supply I23003G1
- Model #: 716837094388
- Item #: 9SIVB8UKX62087
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PAC440WAP01 switching power supply 440W 03021YWG, 12V-5A, ...
- Model #: 792597718276
- Item #: 9SIVRWKKXD7184
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for Optiplex 760/980 SFF Small Power Supply H235P-00 L235P-01
- Model #: 792597706167
- Item #: 9SIVRWKKXD3248
- Return Policy: Nytke team Return Policy
Refurbished: CITAO POS 24V 120W Power Supply PW-120B
- Model #: 753525944358
- Item #: 9SIVB8UKAA5356
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for MSP1600 switching power supply 12.4V 130A 1600W power supply
- Model #: 792597721306
- Item #: 9SIVRWKKXD8164
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1U E200 275W Switching Power Supply ENP-3927B ENP-3927C
- Model #: 744623301631
- Item #: 9SIVB8UKCV8182
- Return Policy: Magicpower Return Policy
Refurbished: T5820 T7820 Workstation Power Supply 750W H750EF-00 662DC D750E006L
- Type: ATX
- Model #: 703454732656
- Item #: 9SIVSY0KUT4819
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: -53.5V 1200W Power Supply AD122M53.5-1M2
- Model #: 703454715390
- Item #: 9SIVB8UKAJ5881
- Return Policy: Magicpower Return Policy
Refurbished: PWR-RGD-AC-DC-H /PWR-RGD-LOW-DC-H
- Type: ATX
- Model #: 703454725139
- Item #: 9SIVSY0KUV3376
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for BTX-400P4 350W desktop 24 pins 8 pins, graphics card 6 pins
- Model #: 792597983032
- Item #: 9SIVB8UKX56796
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3300 M4 750W Power Backplane 69Y5868 69Y5869 94Y8059 ...
- Model #: 759950244797
- Item #: 9SIVB8UKDA9179
- Return Policy: Magicpower Return Policy
Refurbished: For FSP450-50YLN LED host power supply
- Model #: 752804576273
- Item #: 9SIVRWKKXB2069
- Return Policy: Nytke team Return Policy
Refurbished: MSA1040 MSA2040 573W 814665-001 Storage Power Supply
- Model #: 753525932485
- Item #: 9SIVB8UKA99083
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO M52 m8000t A52 310W Power Supply DPS-310CB A 41A9726 ...
- Model #: 744623303383
- Item #: 9SIVB8UKCW6109
- Return Policy: Magicpower Return Policy
Refurbished: DS14MK2 RS-PSU-450-AC1N Storage Power Supply 114-00021 64362-04B
- Model #: 722954728389
- Item #: 9SIVB8UKAA5419
- Return Policy: Magicpower Return Policy
Refurbished: For MW RSP-3000-48 3000W Parallel Adjustable Power Supply 48V 62.5A
- Model #: 753525956337
- Item #: 9SIVB8UKAA8869
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for E75S 415 M420 M425 M428 M435 M510 10 Pin Power Supply TFX 500W ...
- Model #: 792597706198
- Item #: 9SIVRWKKXD3249
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 3750-48PS-E 465W Power Supply DPSN-465AB C
- Model #: 759950247613
- Item #: 9SIVB8UKDF9417
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For 39J5047/Tray assembly with board, 9110-510, 9110-51A
- Model #: 716837095897
- Item #: 9SIVB8UKX62597
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M770 medical power supply S26113-E595-V50-01 DPS--450AB-15 A
- Model #: 716837097341
- Item #: 9SIVB8UKX62946
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module PSR1800-56D
- Model #: 722954728136
- Item #: 9SIVT8HKWF3244
- Return Policy: YunYunKeJiShiZhuangDian 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.
