Power Supplies - Showing 2305 - 2328 of 18359 Products
Refurbished: 1PCS for OptiPlex 3020 7020 9020 SFF Small Chassis Power Supply L255ES-00
- Model #: 792597706297
- Item #: 9SIVRWKKXD3233
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO RG-S6120 S6510 550W Switching Power Supply GW-CRPS550N2C ...
- Model #: 744623302607
- Item #: 9SIVB8UKCV8278
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO SR6604/08/16 series router 650W power supply ...
- Model #: 745635674249
- Item #: 9SIVB8UKDA0161
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FLEX Small 1U Rated 180W Switching Power Supply F-3000L ...
- Model #: 744623314365
- Item #: 9SIVB8UKD21828
- Return Policy: Magicpower Return Policy
Refurbished: PJA600F-24 600W INPUT AC100-240V 50-60Hz 7.5A OUTPUT 24V 25A ...
- Model #: 753525948868
- Item #: 9SIVB8UKAA0050
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P1G-6300P P1G-6250P 1U power supply P1U-6200P industrial ...
- Model #: 792597728206
- Item #: 9SIVB8UKX32985
- Return Policy: Magicpower Return Policy
Refurbished: 24V2.5A 60W LED Power Supply H60W-SD-24
- Model #: 753525941807
- Item #: 9SIVSYTKUV2013
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: PowerEdge 6850 1470W Power Supply SP574 SP574-Y01A PS-2142-1D DU764 ...
- Model #: 753525941333
- Item #: 9SIVB8UKAA4964
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R2A-BV0350-N cage U1A-B10350-DR 350W redundant power ...
- Model #: 792597710591
- Item #: 9SIVRWKKXD4280
- Return Policy: Nytke team Return Policy
Refurbished: For TXL025-12S TRACOPOWER power supply 25W DC12V output
- Model #: 703454720943
- Item #: 9SIVB8UKAJ6534
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U PMBUS 650W Switching Power Supply S12-650P1B
- Model #: 744623303024
- Item #: 9SIVB8UKCW6057
- Return Policy: Magicpower Return Policy
Refurbished: 1800W Switching Power Supply CSU1800AP-3-100
- Model #: 753525943924
- Item #: 9SIVB8UKAA5326
- Return Policy: Magicpower Return Policy
Refurbished: For 500W original power supply PS-8501-2 VB 80 8 + 8 graphics card
- Model #: 752804580089
- Item #: 9SIVRWKKXB2534
- Return Policy: Nytke team Return Policy
Refurbished: Switching Power Supply For FSP 1U FSP250-60WS1 250W
- Model #: 753525949360
- Item #: 9SIVB8UKAA0122
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 1U 300W with -5V power supply P1G-6300P P1U-6150P P1U-6250P
- Model #: 716837096498
- Item #: 9SIVB8UKX62742
- Return Policy: Magicpower Return Policy
Refurbished: For TDK-LAMBDA Vega 450 450W Power Supply Module
- Model #: 753525947373
- Item #: 9SIVB8UKA99898
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP800-20ERM 800W Module Server Power Supply NF5460M4 NF8480 ...
- Model #: 792597709144
- Item #: 9SIVRWKKXD4002
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 200 220 560 580 530 240W Power Supply HK340-71FP PS-5241-04 ...
- Model #: 744623301921
- Item #: 9SIVB8UKCV8196
- Return Policy: Magicpower Return Policy
Refurbished: For Industrial Power Module MRT-6320P-R
- Model #: 703454719121
- Item #: 9SIVB8UKAJ6394
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3650M4 3630M4 DC 750W Switching Power Supply 7001607-J000 ...
- Model #: 744623313092
- Item #: 9SIVB8UKD21723
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RD650 RD550 RD450 RD350 750W Switching Power Supply ...
- Model #: 744623301105
- Item #: 9SIVB8UKCV8114
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R510 G6 1U 600W Switching Power Supply EFAP-601 36001025
- Model #: 744623302133
- Item #: 9SIVB8UKCV8234
- Return Policy: Magicpower Return Policy
Refurbished: For 280W Power Supply PS-5281-7VR DPS-280FBA HK380-12GP PC6001
- Model #: 726727732146
- Item #: 9SIVRWKKXA3409
- Return Policy: Nytke team Return Policy
Refurbished: 5000 175W Power Supply 01K9862 01K9869 DPS-175GB A
- Model #: 703454716120
- Item #: 9SIVB8UKAJ6061
- 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.
