Power Supplies - Showing 1945 - 1968 of 17940 Products
Refurbished: 1pcs for FSP400-70MP/MPD Power Supply FSP300-70MP
- Model #: 716837096900
- Item #: 9SIVB8UKX62819
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 350W IPC3000 industrial computer computer power supply ...
- Model #: 792597714551
- Item #: 9SIVRWKKXD5828
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for SMU01A communication power monitoring module SMU01B ...
- Model #: 792597717538
- Item #: 9SIVRWKKXD6852
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO POS Flex Small 1U 150W Switching Power Supply ST-150FUB-05E
- Model #: 744623303475
- Item #: 9SIVB8UKCW6099
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-1K81P-1R Server Power Supply 1800W Redundant Power Supply ...
- Model #: 726727730685
- Item #: 9SIVRWKKXA3273
- Return Policy: Nytke team Return Policy
Refurbished: For KSA-300S2 POE Recorder Power Supply 7816N P DPS-280AB-4A
- Model #: 752804575368
- Item #: 9SIVRWKKXB1989
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for Standard 230 250S/TURBO COOL 300S
- Model #: 716837087830
- Item #: 9SIVB8UKX59591
- Return Policy: Magicpower Return Policy
Refurbished: DPS-1125BB A Z8 G4 Workstation Power Supply 851384-001 1450W
- Model #: 753525933314
- Item #: 9SIVB8UKA99124
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP600-801UK large 1u server industrial computer computer power ...
- Model #: 792597716258
- Item #: 9SIVRWKKXD6538
- Return Policy: Nytke team Return Policy
Refurbished: IPC Power Supply A5E01341031-I5
- Model #: 724780779313
- Item #: 9SIVB8UKAA6713
- Return Policy: Magicpower Return Policy
Refurbished: EVA3000 EVA5000 Switching Power Supply 7000663-0000 30-56631-01 ...
- Model #: 753525942637
- Item #: 9SIVB8UKAA5181
- Return Policy: Magicpower Return Policy
Refurbished: Video Recorder DPS-75VB/PUI108E-2Z Hard Disk Video Recorder Power ...
- Model #: 722954733567
- Item #: 9SIVB8UKAA5961
- Return Policy: Magicpower Return Policy
Refurbished: PA-1151-2H For H3C 5500-52C-EI Switch Power Supply High-Quality
- Model #: 724780777739
- Item #: 9SIVSYTKUU7936
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1Pcs for ETP48100-B1 Embedded Power Supply OLT 48V50A100A
- Model #: 716837093695
- Item #: 9SIVB8UKX61944
- Return Policy: Magicpower Return Policy
Refurbished: For ER9065/T Charging Station Module 90V, 65A, 5800W Communication
- Model #: 722954726958
- Item #: 9SIVT8HKWF3069
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 3845 300W Power Supply PWR-3845-AC AA23160
- Model #: 753525943474
- Item #: 9SIVB8UKAA5294
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for APC UPS SURT20KUXICH display
- Model #: 792597720590
- Item #: 9SIVRWKKXD7815
- Return Policy: Nytke team Return Policy
Refurbished: For FSP1200-20ERM N5280 8480 M4 Server Switch Power Supply
- Model #: 722954728181
- Item #: 9SIVB8UKAA7502
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Gold Support dual CPU 4-way 2080Ti 1500W Power Supply ...
- Model #: 726099222382
- Item #: 9SIVB8UKCU6260
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for WP2372 348-0034745 073-20745-02 power supply test well
- Model #: 792597715657
- Item #: 9SIVRWKKXD6402
- Return Policy: Nytke team Return Policy
Refurbished: For T7910 T5810 1300W Power Supply H1300EF-02 0T6R7 T31JM
- Model #: 752804574712
- Item #: 9SIVRWKKXB1846
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for SS-400ES/HS SS-460ES/600ES industrial computer power supply
- Model #: 716837097082
- Item #: 9SIVB8UKX62933
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 5468m6 2200W power supply DPS-2200AB-15
- Model #: 716837084457
- Item #: 9SIVB8UKX58070
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for S26113-E503-V50 server power supply M460 power supply NPS-400AB ...
- Model #: 716837082811
- Item #: 9SIVB8UKX57481
- 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.
