Power Supplies - Showing 2017 - 2040 of 17946 Products
Refurbished: AD48/30-B 53.5V/30A For VAPEL Communication Power Rectifier Module
- Model #: 753525955392
- Item #: 9SIVT8HKWF2834
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1PCS for Vostro 3800 220S 230s 260s 531s Desktop Power Supply
- Model #: 792597716890
- Item #: 9SIVRWKKXD6685
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for SP570-1A 210W QW2G P/N 60-0000849-02 18P5001 Power Supply
- Model #: 792597710522
- Item #: 9SIVRWKKXD4265
- Return Policy: Nytke team Return Policy
Refurbished: For 3285197-A/P 3282444-A TDPS-600FB HDS HUS110/130/150 600W Power ...
- Model #: 726727775662
- Item #: 9SIVRWKKXA7204
- Return Policy: Nytke team Return Policy
Refurbished: E74S E75S e700 H3060 F5060 D5060 M310 M410 M610 M90 M4600s m700 ...
- Model #: 753525935233
- Item #: 9SIVB8UKA99341
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Gold Big 1U M99 500W Switching Power Supply ...
- Model #: 744623306230
- Item #: 9SIVB8UKD01964
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V 5A 60W Power Supply GZM-H60S12
- Model #: 759950247934
- Item #: 9SIVB8UKDF9448
- Return Policy: Magicpower Return Policy
Refurbished: For M-2122H 1200W server storage power switch power supply YM-2122HAR
- Model #: 726727731910
- Item #: 9SIVRWKKXA3376
- Return Policy: Nytke team Return Policy
Refurbished: T7810 T5810 T7910 Power Supply D1300EF-02 H1300EF-02 1300W T31JM ...
- Model #: 724780779498
- Item #: 9SIVB8UKAA6735
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For Sun U20 Ultra20 M2 400W Switching Power Supply ...
- Model #: 744623313153
- Item #: 9SIVB8UKD21700
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2U 600W Switching Power Supply HK700-12UEP
- Model #: 744623310602
- Item #: 9SIVB8UKD12107
- Return Policy: Magicpower Return Policy
Refurbished: For AVA-Z35A 49V--7A Equipment Power Supply AVA-Z35A
- Model #: 726727721874
- Item #: 9SIVRWKKXA2184
- Return Policy: Nytke team Return Policy
Refurbished: Z PRO 9228 815W Switching Power Supply AP15FS20 API5FS20 39Y7272 ...
- Model #: 753525945874
- Item #: 9SIVB8UKA99686
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V5A 60W Switching Power Supply GW-T60WV12
- Model #: 744623316666
- Item #: 9SIVB8UKD46517
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 7932N 7916N Recorder POE Power Supply FSP350-20GSV ...
- Model #: 792597982677
- Item #: 9SIVB8UKX56794
- Return Policy: Magicpower Return Policy
Refurbished: 150W Power Supply J9739A 0957-2377
- Model #: 753525941296
- Item #: 9SIVB8UKAA4948
- Return Policy: Magicpower Return Policy
Refurbished: For Music Artifact NMB Meibei Independent Dual 12V 460W Power Supply ...
- Model #: 722954735523
- Item #: 9SIVB8UKAA6193
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO TFX 180W Switching Power Supply PC180AAA PC180
- Model #: 744623302232
- Item #: 9SIVB8UKCV8227
- Return Policy: Magicpower Return Policy
Refurbished: For CD72SH DAT 72 DDS5 GEN5 SATA DDS-5 43W8489
- Model #: 726727730357
- Item #: 9SIVRWKKXA3246
- Return Policy: Nytke team Return Policy
Refurbished: 3850-24XU 350W Power Supply PWR-C1-350WAC-P DPS-350AB-34 A ...
- Model #: 753525946307
- Item #: 9SIVB8UKA99711
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3290735-A G200 G350 Controller
- Model #: 792597984053
- Item #: 9SIVB8UKX57001
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For FSP -5V 350W Switching Power Supply FSP350-60PLN
- Model #: 744623317311
- Item #: 9SIVB8UKD64665
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ACE650F Industrial Power Supply AC6-O2H2H-02 AC6-OACEE-00
- Model #: 792597714704
- Item #: 9SIVRWKKXD6058
- Return Policy: Nytke team Return Policy
Refurbished: 3000W Switching Power Supply R48-3000A3
- Model #: 753525942644
- Item #: 9SIVB8UKAA5184
- 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.
