Power Supplies - Showing 1945 - 1968 of 17933 Products
Refurbished: KHACHIMO AC220V 350W Switching Power Supply MCAT430
- Model #: 744623307664
- Item #: 9SIVB8UKD06431
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PSSF162205A J78186-008 J78186-009 010 006 Power supply 1600W
- Model #: 792597725564
- Item #: 9SIVRWKKXD9388
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply MSP1698 0014-00-0225
- Model #: 759950243059
- Item #: 9SIVB8UKDA8929
- Return Policy: Magicpower Return Policy
Refurbished: M830B, 19-60V, 0.5A (maximum 15A) Monitoring Power Module
- Model #: 722954732386
- Item #: 9SIVB8UKAA5836
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-500LB A Server Power Module 500W Power Supply AF500B00438
- Model #: 792597708536
- Item #: 9SIVRWKKXD3819
- Return Policy: Nytke team Return Policy
Refurbished: LEA100F-12 Original Disassembly Switching Power Supply 12V/8.5A
- Model #: 753525985702
- Item #: 9SIVB8UKAA9229
- Return Policy: Magicpower Return Policy
Refurbished: For UNIS 526T X500T X020T X700T 17L Power Supply DPS-750UB A 1PCS
- Model #: 726727732474
- Item #: 9SIVRWKKXA3517
- Return Policy: Nytke team Return Policy
Refurbished: P750 8233-E8B 1725W Power Supply 7001520-J000 74Y8431 74Y5811 ...
- Model #: 722954989858
- Item #: 9SIVB8UKAJ5643
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for GL350HATKA-35009 Automotive Relay 12-32VDC
- Model #: 792597717477
- Item #: 9SIVRWKKXD6849
- Return Policy: Nytke team Return Policy
Refurbished: ISR4431 4451 Series DC Power Module PWR-4430-DC
- Model #: 753525986334
- Item #: 9SIVB8UKAA8560
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 078-000-094/-130 BBU battery 078-000-128/-129
- Model #: 792597722921
- Item #: 9SIVRWKKXD8613
- Return Policy: Nytke team Return Policy
Refurbished: 1200W Switching Power Supply PHD-1K2WA-F
- Model #: 753525946093
- Item #: 9SIVB8UKA99681
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 4332 Power Supply FSP150-10GSV DPS-150AB-3A DPS-75VB
- Model #: 792597713639
- Item #: 9SIVRWKKXD4949
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 510S-07ICB 07IMB M420 PCH018 PA-1181-7 Small Chassis Power ...
- Model #: 792597982097
- Item #: 9SIVB8UKX56652
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-6621BBR YM-6621BAR YM-6621B YM-6621BA01R Redundant ...
- Model #: 792597710652
- Item #: 9SIVRWKKXD4390
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 4200V 0.35A 1800W For WepeX 1800W
- Model #: 759950240737
- Item #: 9SIVB8UKDA0418
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PAC-60WA-L S5721 S5720 60W switching AC power module
- Model #: 792597718665
- Item #: 9SIVRWKKXD7349
- Return Policy: Nytke team Return Policy
Refurbished: FSB015 JPSU-650W-DC-AFO 740-043886 650W Network Switch Power Supply
- Model #: 724780182946
- Item #: 9SIVB8UKA98967
- Return Policy: Magicpower Return Policy
Refurbished: PC12U-200P-X2SV For NIPRON Industrial Medical Equipment Power Supply
- Model #: 753525933239
- Item #: 9SIVB8UKA99136
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply EP1600-UTEZ SA RECTIFIER 150044531 48-58VDC 1600W
- Model #: 722954737343
- Item #: 9SIVB8UKAA6339
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-250AB-55A 55B 59B 24C 250W cash register, small 1U power ...
- Model #: 726099252440
- Item #: 9SIVRWKKXD1642
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for OMR200-48A AC power supply
- Model #: 792597720347
- Item #: 9SIVRWKKXD7834
- Return Policy: Nytke team Return Policy
Refurbished: For 1U power supply GW-1U450 450W
- Model #: 752804578765
- Item #: 9SIVRWKKXB2412
- Return Policy: Nytke team Return Policy
Refurbished: For H3C Huasan AC-PSR350-A10-H3 PSR350-A AC Power Module
- Model #: 722954733444
- Item #: 9SIVSY0KUT1722
- Return Policy: LiAnMengYuShangDian 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.
