Power Supplies - Showing 2305 - 2328 of 17933 Products
Refurbished: For R2Z-6350P-R 350W Server Industrial Computer Firewall Power Supply ...
- Model #: 722954731556
- Item #: 9SIVB8UKAA5757
- Return Policy: Magicpower Return Policy
Refurbished: 2U HK600-12UEPP 510W Server Power Dual 8PIN
- Model #: 703454719138
- Item #: 9SIVB8UKAJ6398
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply FSP270-60LE ITX cash register
- Model #: 792597982820
- Item #: 9SIVB8UKX56760
- Return Policy: Magicpower Return Policy
Refurbished: Small 1U 400W Power Supply P1S-2400V
- Model #: 753525941234
- Item #: 9SIVSYTKUT0463
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 0.45A 24V Power Supply For VAF1024 XOMM VAF1024 X0MM
- Model #: 753525989434
- Item #: 9SIVB8UKAA7752
- Return Policy: Magicpower Return Policy
Refurbished: SB5800-08A Fiber Switch Power Supply SBPSFAN2FB 31741-06 Power Module
- Model #: 703454717400
- Item #: 9SIVB8UKAJ6138
- Return Policy: Magicpower Return Policy
Refurbished: MRW-6400P 400W Server Redundant Power Supply MRW-6400P-R Module 2 ...
- Model #: 753525955408
- Item #: 9SIVB8UKAA0338
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO B320 B325r B520 B540 8Pin 200W Power Supply HKF2002-32 ...
- Model #: 744623317892
- Item #: 9SIVB8UKD64754
- Return Policy: Magicpower Return Policy
Refurbished: For PRTEM 48V 25A Power Supply For SMDC1204
- Model #: 753525989984
- Item #: 9SIVB8UKAA7824
- Return Policy: Magicpower Return Policy
Refurbished: New For 48V 50A Power Supply For RM4850 SMR3004D SMR3004ak1 SMR3004A ...
- Model #: 753525991246
- Item #: 9SIVB8UKAA8032
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply INVENTRNICS 255W Power Supply EBC-255S105SV
- Model #: 703454716434
- Item #: 9SIVB8UKAJ6041
- Return Policy: Magicpower Return Policy
Refurbished: PWS-401-1R 400W Power Supply
- Model #: 753525949193
- Item #: 9SIVB8UKAA0088
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CR48-3G switching power supply module CR48
- Model #: 716837094456
- Item #: 9SIVB8UKX62115
- Return Policy: Magicpower Return Policy
Refurbished: For 30-10047-01 API2FS01 DS25 server power supply 500W
- Model #: 726727816396
- Item #: 9SIVRWKKXB0662
- Return Policy: Nytke team Return Policy
Refurbished: Switch 150W AC Power Module PAC-150WA, 02130969, CE5810-24T4S-EI
- Model #: 722954728341
- Item #: 9SIVB8UKAA7496
- Return Policy: Magicpower Return Policy
Refurbished: PSU For FLEXTRONICS 1100W Power Supply EMC-S-1100ADU00 071-000-711
- Model #: 753525934724
- Item #: 9SIVB8UKA99286
- Return Policy: Magicpower Return Policy
Refurbished: Vostro 3450 3650 3656 3040 5040 7040 8Pin 180W Power Supply H180AS-03 ...
- Model #: 753525934892
- Item #: 9SIVB8UKA99304
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V33A Power Supply Q48SH12033NN H
- Model #: 759950239779
- Item #: 9SIVB8UKDA0329
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO New Power Supply For NEMIC-LAMBDA 12V 4.4A 50W For EWS-50-12 ...
- Model #: 759950244162
- Item #: 9SIVB8UKDA9100
- Return Policy: Magicpower Return Policy
Refurbished: For FSP400-701US P2M-5800V P2P-5700P HU2-5860V MRG-5800V4V Power ...
- Model #: 726727818932
- Item #: 9SIVRWKKXB1334
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 48V1.25A 60W Power Supply TN13-0060-48
- Model #: 759950245725
- Item #: 9SIVB8UKDA9325
- Return Policy: Magicpower Return Policy
Refurbished: 48V 900W Power Supply GPMP900-48
- Model #: 703454716588
- Item #: 9SIVB8UKAJ6097
- Return Policy: Magicpower Return Policy
Refurbished: LE0MPSD16 1600W 02316867
- Model #: 724780182939
- Item #: 9SIVB8UKA98963
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for NF5460M4 NF8480 M4 Server DC FSP800-20ERM-LR 48V Power Supply
- Model #: 716837085720
- Item #: 9SIVB8UKX58626
- 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.
