Power Supplies - Showing 2017 - 2040 of 17933 Products
Refurbished: for AT Power Supply for PS-270A 270W Work Good
- Model #: 703454925003
- Item #: 9SIVB8UKA98717
- Return Policy: Magicpower Return Policy
Refurbished: For AK383A Ultrium1760 LTO4 BRSLA-0703-DC 467729-001
- Model #: 724780777876
- Item #: 9SIVB8UKAA7608
- Return Policy: Magicpower Return Policy
Refurbished: For 14P power supply HK280-23FP PCB037 PCB038 HK280-25FP PE-3181-01
- Model #: 726727732214
- Item #: 9SIVRWKKXA3440
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 500W FLEX industrial control NAS server power supply DPS-500AB-10A
- Model #: 792597716753
- Item #: 9SIVRWKKXD6681
- Return Policy: Nytke team Return Policy
Refurbished: P6500 EVA4400 TDPS-250AB A 519842-001 5697-7682 Storage power supply
- Model #: 722954988448
- Item #: 9SIVB8UKAA6563
- Return Policy: Magicpower Return Policy
Refurbished: PSU 350W Switching Power Supply GPS-350AB B
- Model #: 753525936049
- Item #: 9SIVB8UKA99455
- Return Policy: Magicpower Return Policy
Refurbished: For DENSEI-LAMBDA 50W Power Supply For LWT50H-522
- Model #: 753525991567
- Item #: 9SIVB8UKAA8109
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Truepower 650 650W Switching Power Supply TP-650
- Model #: 744623312866
- Item #: 9SIVB8UKD19613
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for POC-174 power supply FSP180-50MP
- Model #: 792597716951
- Item #: 9SIVRWKKXD6687
- Return Policy: Nytke team Return Policy
Refurbished: For DL580G2 870W Power Supply ESP114A 192201-002 192147-002
- Model #: 726727725179
- Item #: 9SIVRWKKXA2661
- Return Policy: Nytke team Return Policy
Refurbished: For U1A-G10075-S-A1 Eurocom power supply 12V 6.25A 75W
- Model #: 703454722145
- Item #: 9SIVB8UKAJ6681
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Switching Power Supply For POWERL 12V3A Power Supply ...
- Model #: 759950244230
- Item #: 9SIVB8UKDA9132
- Return Policy: Magicpower Return Policy
Refurbished: For 3292502-A HDS VSP 5500H DKC-F910I-NBX DBPS NBX Power Supply
- Model #: 726727821741
- Item #: 9SIVRWKKXB1615
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for Power supply PCFX-220P-X2S
- Model #: 792597983186
- Item #: 9SIVB8UKX56898
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MCP300D-4.5 Slim Power Supply test well
- Model #: 792597714995
- Item #: 9SIVRWKKXD6035
- Return Policy: Nytke team Return Policy
Refurbished: New 1478170000 PRO MAX3 120W 24V 5A Three-Phase Power Switching Power ...
- Model #: 724780183707
- Item #: 9SIVB8UKA99028
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for industrial control power supply 600W 500W ATX-600PNR-1
- Model #: 716837091813
- Item #: 9SIVB8UKX61141
- Return Policy: Magicpower Return Policy
Refurbished: For 300W 80 Plus Power Supply For DSP-300AB-70A DSP-300AB-70 A
- Model #: 753525988628
- Item #: 9SIVB8UKAA7674
- Return Policy: Magicpower Return Policy
Refurbished: ACE650F 650W AC6-FFFFC-00 Power Supply
- Model #: 753525955606
- Item #: 9SIVB8UKAA0329
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 220W Power Supply R1U-2220V R1U2-5220V4H
- Model #: 744623300252
- Item #: 9SIVB8UKCU6718
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZHR483KG communication power supply ZHR484KG 5G 50A75A
- Model #: 716837095385
- Item #: 9SIVB8UKX62429
- Return Policy: Magicpower Return Policy
Refurbished: For 48V 50A Power Supply For SMR3004HE
- Model #: 753525989892
- Item #: 9SIVB8UKAA7793
- Return Policy: Magicpower Return Policy
Refurbished: DL 380 G4 Server Power DPS-600PB B 321632-501 321632-001
- Model #: 724780182649
- Item #: 9SIVB8UKA98900
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3020 7020 9020 T1700 3670 8Pin 460W Upgrade Power Supply ...
- Model #: 744623316376
- Item #: 9SIVB8UKD46524
- 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.
