Power Supplies - Showing 1945 - 1968 of 17990 Products
Refurbished: For FAS2040 FAST2020 Power Supply YM-2751A CP-1103R2 Spot Supply
- Model #: 726727722703
- Item #: 9SIVRWKKXA2258
- Return Policy: Nytke team Return Policy
Refurbished: 580W 756486-001 682373-001 753322-001 3PAR Expansion Enclosure ...
- Model #: 753525985566
- Item #: 9SIVB8UKAA9205
- Return Policy: Magicpower Return Policy
Refurbished: LDC15F-1 Original Disassembly Industrial Medical Power Supplies 5V/2A
- Model #: 724780777883
- Item #: 9SIVRTNKX43560
- Return Policy: Jiamayanonly Return Policy
Refurbished: Power OMR200-48A Core Power Module
- Model #: 722954723384
- Item #: 9SIVB8UKAA6971
- Return Policy: Magicpower Return Policy
Refurbished: POWERLD PD-100 5V16A 100W Switching Power Supply PD-100-5
- Model #: 753525945201
- Item #: 9SIVB8UKA99585
- Return Policy: Magicpower Return Policy
Refurbished: For T340 Server Power Supply 350W AC350E-S0 FSE033-241G NW98H
- Model #: 792597703548
- Item #: 9SIVRWKKXD2298
- Return Policy: Nytke team Return Policy
Refurbished: Hitpowt 620W Power Supply HVP620-D540I
- Model #: 753525945317
- Item #: 9SIVB8UKA99617
- Return Policy: Magicpower Return Policy
Refurbished: For S5500 5120 switch POE power supply PSL520-AD GPL520-ADH
- Model #: 726099251351
- Item #: 9SIVRWKKXD1498
- Return Policy: Nytke team Return Policy
Refurbished: P14 250W Switching Power Supply P1A-6250P
- Model #: 753525946024
- Item #: 9SIVB8UKA99699
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO P2000 G3 MSA2000 SAS 573W Switching Power Supply ...
- Model #: 744623304007
- Item #: 9SIVB8UKCW6168
- Return Policy: Magicpower Return Policy
Refurbished: S82J-60024 Switching Power Supply 24VDC 27A
- Model #: 753525948097
- Item #: 9SIVB8UKA99986
- Return Policy: Magicpower Return Policy
Refurbished: P500 P700 P710 FSP850-0AWSE 54Y8907 850W Workstation Power Supply
- Model #: 753525954517
- Item #: 9SIVB8UKAA0225
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for CX500 Storage, Power Supply 118032392 MA 01772
- Model #: 716837097457
- Item #: 9SIVB8UKX62938
- Return Policy: Magicpower Return Policy
Refurbished: R4830G1 2000W Communication Power Rectifier Module
- Type: ATX
- Model #: 703454922972
- Item #: 9SIVT8HKWF3040
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For X3400/X3500 M2 M3 power supply DPS-980CB A 39Y7386 69Y3749
- Model #: 752804574651
- Item #: 9SIVRWKKXB1920
- Return Policy: Nytke team Return Policy
Refurbished: For NMP650-CEEH-00 Power Supply NMP CONFIGURABLE POWER Supply 65
- Model #: 703454718575
- Item #: 9SIVSYTKUT0456
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: KHACHIMO PSU For Hanker 4Pin+2Pin MAX 190W Power Supply ...
- Model #: 726099221538
- Item #: 9SIVB8UKCU6116
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SAK250L-F4-GA03-0000FF JSA1500 SAK250L-F4 Power Supply
- Model #: 792597711840
- Item #: 9SIVRWKKXD4653
- Return Policy: Nytke team Return Policy
Refurbished: OptiPlex 3020 7020 9020 255W Power Supply L255AS-00 L255ES-00 ...
- Model #: 753525944907
- Item #: 9SIVB8UKA99603
- Return Policy: Magicpower Return Policy
Refurbished: C9400 Series Power Module 341-0566-01 C9400-PWR-3200AC
- Model #: 753525984057
- Item #: 9SIVB8UKAA9062
- Return Policy: Magicpower Return Policy
Refurbished: Industrial Computer ACE-940AP ACE-940AP-RS AT Power Supply
- Model #: 722954731402
- Item #: 9SIVB8UKAA5742
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Module For MURATA 75W Power Supply UWE-12/5-Q12P-C ...
- Model #: 759950245084
- Item #: 9SIVB8UKDA9259
- Return Policy: Magicpower Return Policy
Refurbished: ATX-350P4 Computer Industrial Control Desktop Host Server Power Supply ...
- Model #: 722954727528
- Item #: 9SIVSYTKUT2663
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1Pcs for FSP065-DHAN3 FSP065M-DHA PUP221-14 FSP050-DHAN3 Adapter ...
- Model #: 716837087304
- Item #: 9SIVB8UKX59372
- 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.
