Power Supplies - Showing 2089 - 2112 of 17946 Products
Refurbished: KHACHIMO For 3Y 820W Switching Power Supply YM-2821A YM-2821ACR ...
- Model #: 744623303734
- Item #: 9SIVB8UKCW6106
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for JPSU-600-AC-AFO switch power supply DPS-600AB-6 PN:640-060602
- Model #: 792597727193
- Item #: 9SIVB8UKX32615
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ML350G5 Power Supply 413144-001 396270-001 411787-001
- Model #: 759950243547
- Item #: 9SIVB8UKDA9014
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO IPC Security 1U 250W Switching Power Supply DPS-250AB-59 B ...
- Model #: 744623305981
- Item #: 9SIVB8UKD01945
- Return Policy: Magicpower Return Policy
Refurbished: LWT15H-5FF For LAMBDA 17W 5V+-15V 3-way Switching Power Supply
- Model #: 724780182137
- Item #: 9SIVB8UKA98840
- Return Policy: Magicpower Return Policy
Refurbished: Power Module FLATPACK2 220/2000 HE Output 245.3V 8.1 241115.815
- Model #: 753525985580
- Item #: 9SIVB8UKAA9214
- Return Policy: Magicpower Return Policy
Refurbished: PWR-C2-640WDC 2960/3650 Series Switch DC Power Supply 640W
- Model #: 753525949483
- Item #: 9SIVB8UKAA0121
- Return Policy: Magicpower Return Policy
Refurbished: IPC Redundant PSU 1+1 300W Power Supply R1S2-5300V4V P1S-2300V-R
- Model #: 753525941692
- Item #: 9SIVB8UKAA5005
- Return Policy: Magicpower Return Policy
Refurbished: For 3340 23 inches, power supply 185W B185EA-00 D185EA-00 H185EA-00
- Model #: 726727733976
- Item #: 9SIVRWKKXA3861
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for S5500 5120 switch POE power supply PSL520-AD GPL520-ADH
- Model #: 792597728336
- Item #: 9SIVB8UKX32986
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Z800 850W Switching Power Supply DPS-850DB A 468929-004 ...
- Model #: 744623310732
- Item #: 9SIVB8UKD12112
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-920P-SQ PWS-920-1R 920W Server Redundant Power Module
- Model #: 726727817454
- Item #: 9SIVRWKKXB0821
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for NS-500 NSR-251 094-0023-000 Network machine power supply
- Model #: 792597728183
- Item #: 9SIVB8UKX32977
- Return Policy: Magicpower Return Policy
Refurbished: AIR-PWR-5500-AC Controller Power SPACSC0-20 Switch Power Supply
- Model #: 753525986518
- Item #: 9SIVB8UKAA8586
- Return Policy: Magicpower Return Policy
Refurbished: HD2450 Communication Power Supply 24V 50A
- Type: ATX
- Model #: 703454924631
- Item #: 9SIVSY0KUT3892
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for POE Recorder DPS-200PB-185B POE Power Supply
- Model #: 792597715268
- Item #: 9SIVRWKKXD6233
- Return Policy: Nytke team Return Policy
Refurbished: UCS C200 Server Power Supply CPB09-031A R2X0-PSU2-650W-SB
- Model #: 724780777937
- Item #: 9SIVB8UKAA7583
- Return Policy: Magicpower Return Policy
Refurbished: 7040MT 3650 3040 3046 Power Supply L240EM-00 L240AM-00 B240NM-00
- Model #: 722954987519
- Item #: 9SIVB8UKAA6482
- Return Policy: Magicpower Return Policy
Refurbished: L/D/B/H200AS-00 X61RM D200A003L Power Supply 2JWJ3 8C0JV PK64R
- Model #: 722954733604
- Item #: 9SIVB8UKAA5977
- Return Policy: Magicpower Return Policy
Refurbished: ADP36-52AP EWPAM1POE5 Single Port Gigabit POE Power Supply Module 30W ...
- Model #: 703454717868
- Item #: 9SIVB8UKAJ6236
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ML110 G9 350W Switching Power Supply S14-350P1A 780077-501 ...
- Model #: 744623315805
- Item #: 9SIVB8UKD46452
- Return Policy: Magicpower Return Policy
Refurbished: For 071-000-036 SGA005 1100W VNX5200/5400/5600/7600 power supply
- Model #: 726727821918
- Item #: 9SIVRWKKXB1641
- Return Policy: Nytke team Return Policy
Refurbished: For PWS-1K25P-PQ Device Workstation Medical Power Supply
- Type: Power Supply
- Model #: PWS-1K25P-PQ
- Item #: 9SIVSYTKUT0432
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 85Y6070 85Y6069 85Y5847 85Y6072 00AR037 V7000 G1 764W Main Cabinet ...
- Model #: 724780778194
- Item #: 9SIVB8UKAA7635
- 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.
