Power Supplies - Showing 1921 - 1944 of 17946 Products
Refurbished: KHACHIMO NAS 531 1815 DS1515+ Samll 1U 250W Switching Power Supply ...
- Model #: 744623301266
- Item #: 9SIVB8UKCV8129
- Return Policy: Magicpower Return Policy
Refurbished: S2600 706w SPS700TV-D vapel Switching Power Supply 0227G005
- Model #: 703454719954
- Item #: 9SIVB8UKAJ6426
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AR2240/AR3260 router 350W AC power module PAC-350WB-L
- Model #: 792597718108
- Item #: 9SIVRWKKXD7021
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For POWER ONE/BEL 5V 50A 250W For PFC250-1005
- Model #: 759950242885
- Item #: 9SIVB8UKDA8873
- Return Policy: Magicpower Return Policy
Refurbished: FSP 400W Power Supply FSP400-62PFB
- Model #: 753525941401
- Item #: 9SIVB8UKAA4986
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO HWS150A 15V 10A 150W Power Supply HWS150A-15/A ...
- Model #: 759950241628
- Item #: 9SIVSY0KUV3342
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for PLP-60-48 48V1.3A60W Switching Power Supply
- Model #: 792597718832
- Item #: 9SIVRWKKXD7346
- Return Policy: Nytke team Return Policy
Refurbished: For Sun X3-2 X4170 M3 7047410 7079395 7060951 AA27020L Server Power ...
- Model #: 726727815818
- Item #: 9SIVRWKKXB0234
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 300- 2235-03 300- 2304-01 ECD15020017 AWF-2DC-1200W-S ...
- Model #: 792597711536
- Item #: 9SIVRWKKXD4552
- Return Policy: Nytke team Return Policy
Refurbished: FSP350-601U SSG520 FSP3501UR-JNP 350W Power Supply
- Model #: 753525947816
- Item #: 9SIVB8UKA99926
- Return Policy: Magicpower Return Policy
Refurbished: For 155W 160W 220W 240W Power Supply L240EPA-00 L155EBA-00 ...
- Model #: 726727733662
- Item #: 9SIVRWKKXA3848
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For PWS-802A-1R server power supply 800W redundant power supply, ...
- Model #: 726099253096
- Item #: 9SIVRWKKXD1877
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO DL20 G9 300W Power Supply S14-300P1A 823805-001 ...
- Model #: 759950244780
- Item #: 9SIVB8UKDA9175
- Return Policy: Magicpower Return Policy
Refurbished: AIR-PWR-5500-AC SPACSCO-20 For 5500 Series Power Supply
- Model #: 753525949711
- Item #: 9SIVB8UKAA0160
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Infortrend IFRP-532NF IFRP-532NFE 530W 9273ECPSu
- Model #: 792597728244
- Item #: 9SIVB8UKX32951
- Return Policy: Magicpower Return Policy
Refurbished: PWS-704P-1R 750W Switching Power Supply
- Model #: 753525949551
- Item #: 9SIVSYTKUT6649
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: KHACHIMO 550W Switching Power Supply U1A-D10550-DRB
- Model #: 744623298238
- Item #: 9SIVB8UKCU6415
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CRPS 860W Switching Power Supply G1W-3860V
- Model #: 744623310466
- Item #: 9SIVB8UKD12097
- Return Policy: Magicpower Return Policy
Refurbished: For HSTNS-PD29 DL360/380 G8 DPS-750AB-3 A 643955-101 750W
- Model #: 752804574699
- Item #: 9SIVRWKKXB1861
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO New Power Supply For ENHANCE AT P8P9 250W Power Supply V525
- Model #: 759950245404
- Item #: 9SIVB8UKDA9291
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP300-60GHS/GLS industrial computer medical power supply ...
- Model #: 792597713530
- Item #: 9SIVRWKKXD4914
- Return Policy: Nytke team Return Policy
Refurbished: HENGFU HF800W-S 24V33A 800W Switching Power Supply HF800W-S-24
- Type: ATX
- Model #: 753525938678
- Item #: 9SIVSY0KUT7675
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for 280G3, 400G5 power supply 180W, L07658-001, L17839-001, ...
- Model #: 792597708239
- Item #: 9SIVRWKKXD3810
- Return Policy: Nytke team Return Policy
Refurbished: TDK-LAMBDA RWS150B 48V3.3A 150W Power Supply RWS150B-48
- Model #: 703454716557
- Item #: 9SIVB8UKAJ6091
- 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.
