Power Supplies - Showing 769 - 792 of 12346 Products
Mean Well Es18U05 Ac Adapter 5V 3.00A 15W
- Model #: ES18U05
- Item #: 9SIV1W87N60250
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HitLights 24 Watt (2 Amp) LED Power Supply 110V AC to 12V DC Transformer UL-Listed Lighting ...
- Model #: LB007ME2HMQ
- Item #: 9SIVARYH6X4101
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TP-Link TL-FC111B-20 | 10/100 Mbps WDM SFP to RJ45 Fiber Media Converter | Fiber to ...
- Model #: LB09Q7Y7MDK
- Item #: 9SIVARYH6Y1129
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CableMod C-Series Pro ModMesh Sleeved 8-pin PCI-e Cable for Corsair RM Yellow ...
- Model #: LB08GJQNY8S
- Item #: 9SIVARYH6Z1834
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Enclosed Type 102W 12V 8.5A SE-100-12 Meanwell AC-DC SMPS SE-100 Series MEAN WELL ...
- Model #: LB018153US4
- Item #: 9SIVARYH702123
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Streacom ST-NANO120 Nano PSU 120watt, AC-DC Adapter, Internal PSU
- Model #: LB01019Q1JS
- Item #: 9SIVARYH702826
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CableMod C-Series Pro ModMesh Sleeved Cable Kit for Corsair RM Black Label/RMi/RMX ...
- Model #: LB0799C5HBQ
- Item #: 9SIVARYH6Z1842
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Siig Nn-400P33 Firewire 3-Port Pci Siig
- Model #: NN-400P33
- Item #: 9SIV1W87N60974
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Power Supply Replacement for HP PSU 400w Platinum Rated Lincs Sunflower Pavilion ...
- Model #: SAB0BHSXKNKW
- Item #: 9SIVARYK4X0475
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MEAN WELL MW GS90A24-P1M 24V 3.75A 90W AC-DC Green Industrial Adaptor
- Model #: LB01817QBEW
- Item #: 9SIVARYH701481
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New 110-230V 400W PSU 80Plus Bronze SFX Micro Full Module Professional E-Sports ...
- Model #: SAB0CG5SHJQP
- Item #: 9SIVARYK4W9431
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SPI Power Supply ATX-450PN-B204 450W ATX2.2 (12V) Ball Bearing Fan 20? 2xSATA ...
- Model #: LB004JUXRJ8
- Item #: 9SIVARYH6Y2513
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LED Power Supplies 30W 15V 2A LED Power Supply
- Model #: LB005T6SE08
- Item #: 9SIVARYH703812
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[PowerNex] Mean Well PT-6503 3.3V 5V 12V 1A 6A 61.8W Triple Output with 3.3V output ...
- Model #: LB005T6IW7S
- Item #: 9SIVARYH703780
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HP 460888-001 240 Watt Power Supply For Dc5800 Sff Dc7900 Sff
- Model #: 460888-001
- Item #: 9SIV1W87N60373
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TP-Link TL-FC111PB-20 | 10/100 Mbps WDM SFP to RJ45 Fiber to Ethernet Media Converter ...
- Model #: LB09Q8CTMVG
- Item #: 9SIVARYH6Y1136
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SilverStone Technology ET500-B Silverstone 80 Plus Bronze 500W ATX Switching Power ...
- Model #: LB08DLC2H9Z
- Item #: 9SIVARYH6Z0448
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Line 6 DC-1g | 9v DC 500mA Power Supply for XDS-Plus XDR95 Relay G30 G50 G90 XD-V70/30 ...
- Model #: LB01A62SZ4Y
- Item #: 9SIVARYH6Y2568
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PSU for ML110 G7 350W Power Supply 629051-001 644744-001 S10-350P1A
- Model #: SAB09M8PSLYK
- Item #: 9SIVARYK4Z1170
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CableMod C-Series Pro ModFlex Sleeved Cable Kit for Corsair RM Black Label/RMi/RMX ...
- Model #: LB089KQCHXQ
- Item #: 9SIVARYH6Z1830
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Enermax MaxTytan 80+ Titanium Certified Full Modular 1050W Power Supply with Amazing ...
- Model #: LB074ZJ7GZ5
- Item #: 9SIVARYH6Y3115
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PSU for 180W SFF Power Supply PS-4181-7 DPS-180AB-20 A PCE019 793073-001 ...
- Model #: SAB0C5FPBHWT
- Item #: 9SIVARYK4Z1032
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Dell Mx838 488 Watt Power Supply For Powervault Md3000
- Model #: MX838
- Item #: 9SIV1W87PX2184
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Sparkle Power 150W Power Supply - 150 W
- Model #: LB09RFBV5RD
- Item #: 9SIVARYH6Z9841
- Return Policy: Nature 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.
