Power Supplies - Showing 2017 - 2040 of 17991 Products
Refurbished: KHACHIMO OptiPlex 390 790 990 3010 7010 9010 Power Supply D240ES-00 ...
- Model #: 744623299020
- Item #: 9SIVB8UKCU6586
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PS-2152-2H V5 1500w server AC power supply
- Model #: 792597984800
- Item #: 9SIVB8UKX57198
- Return Policy: Magicpower Return Policy
Refurbished: Dell Optiplex 3040/5040 SFF L240AM-00 240 Watt Switching Power Supply ...
- Model #: 3RK5T, L240AM-00
- Item #: 9SIVG1JK7Z2510
- Return Policy: Fastparts Return Policy
Refurbished: Power Supply RUIJIE 800W Power Supply RG-PA800-PCE
- Model #: 703454714751
- Item #: 9SIVB8UKAJ5732
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ML110 G7 350W Switching Power Supply 629015-001 644744-001 ...
- Model #: 744623301426
- Item #: 9SIVB8UKCV8143
- Return Policy: Magicpower Return Policy
Refurbished: DS3500/DS3512 Storage Power Supply 69Y0200 00W1521 00W1182 585W
- Model #: 722954987755
- Item #: 9SIVB8UKAA6479
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for NF8480M4 Power Supply 800W SP810
- Model #: 792597984954
- Item #: 9SIVB8UKX57161
- Return Policy: Magicpower Return Policy
Refurbished: Generation 3710 3910 5000MT 7000MT Power Supply D180EBS-00 ...
- Model #: 703454719381
- Item #: 9SIVB8UKAJ6357
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZXD050 D240 Communication Power Module
- Model #: 792597720057
- Item #: 9SIVRWKKXD7673
- Return Policy: Nytke team Return Policy
Refurbished: MRS-6500P-R (V2) 500W Power Supply P/N: B011670002
- Model #: 722954734595
- Item #: 9SIVB8UKAA6079
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ATX-1235GA1 F 350W ATX Power Supply 400W
- Model #: 792597716678
- Item #: 9SIVRWKKXD6688
- Return Policy: Nytke team Return Policy
Refurbished: For server industrial control power supply 560W SP562-1R 1PCS
- Model #: 726727728569
- Item #: 9SIVRWKKXA2715
- Return Policy: Nytke team Return Policy
Refurbished: VLC60N0001 For Industrial Medical Power Module 17V3.5A
- Model #: 724780779207
- Item #: 9SIVB8UKAA6672
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2U 550W Switching Power Supply ST-550UAC-05G
- Model #: 744623311418
- Item #: 9SIVB8UKD12206
- Return Policy: Magicpower Return Policy
Refurbished: For X3400 X3500 Server Power Supply DPS-670BB A 24R2719 24R2720 670W
- Model #: 752804574248
- Item #: 9SIVRWKKXB1774
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for YM-2651V 650W 48V switching power supply module
- Model #: 792597704590
- Item #: 9SIVRWKKXD2529
- Return Policy: Nytke team Return Policy
Refurbished: For 6287 21P4437 pSeries650 7038-6M2 1100WW P650 Power Supply
- Model #: 726727725957
- Item #: 9SIVRWKKXA2675
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For CWT -5V 400W Switching Power Supply CWT-400BDP
- Model #: 744623302263
- Item #: 9SIVB8UKCV8239
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 2800W server power supply 1PDR6 D2800E-S1 NCMPF FX9WJ
- Model #: 716837088240
- Item #: 9SIVB8UKX59816
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AHF-2DC-6300W NG-MOD-6KW 341-100645-01 54V/120A Switching ...
- Model #: 792597719952
- Item #: 9SIVRWKKXD7634
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO FLEX Small 1U K39 250W Switching Power Supply ENP-7025B ENP ...
- Model #: 744623306070
- Item #: 9SIVB8UKD01977
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-521-1H power supply 520W 1U 1pcs
- Model #: 726727821147
- Item #: 9SIVRWKKXB1527
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 12V 13A 161W For DPSN-150BP M1R DPSN-150BP KF
- Model #: 759950242083
- Item #: 9SIVB8UKDA8784
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Standard 1U 300W Switching Power Supply LMJD-30001U
- Model #: 744623310824
- Item #: 9SIVB8UKD12098
- 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.
