Power Supplies - Showing 1921 - 1944 of 17940 Products
Refurbished: For TDK-Lambda HWS300-24 HWS300-24/HD HWS300-48/H
- Model #: 752804577720
- Item #: 9SIVRWKKXB2179
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 400W Power Supply BTX-500SE BTX-500SE(A)
- Model #: 744623308029
- Item #: 9SIVB8UKD06305
- Return Policy: Magicpower Return Policy
Refurbished: For MW SD-1000H-48 Single Group Output Converter Power Supply
- Model #: 753525987324
- Item #: 9SIVB8UKAA8764
- Return Policy: Magicpower Return Policy
Refurbished: 80plus Platinum 1288H V5 2288H V5 2488 V5 2488H V5 5885H V5 1500W Power ...
- Model #: 753525945959
- Item #: 9SIVB8UKA99672
- Return Policy: Magicpower Return Policy
Refurbished: 1U 250W Power Supply FSP250-50PL
- Model #: 753525941562
- Item #: 9SIVB8UKAA5002
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3710 3901 Power Supply 240W 865N6 H240EBS-00 AC240EBS-00
- Model #: 716837091608
- Item #: 9SIVB8UKX61154
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3000W Power Supply DPS-3000AB-24 B DPS-3000AB-24B
- Model #: 726099222443
- Item #: 9SIVB8UKCU6235
- Return Policy: Magicpower Return Policy
Refurbished: 500W Switching Power Supply R48-500A
- Model #: 753525941159
- Item #: 9SIVB8UKAA4937
- Return Policy: Magicpower Return Policy
Refurbished: For TDK-LAMBDA Switching Power Supply SWS1000L-24
- Model #: 752804578895
- Item #: 9SIVRWKKXB2332
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA AIPHA 1000W Power Supply H10720 ...
- Model #: 759950240645
- Item #: 9SIVB8UKDA0386
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 230W Power Supply MPW-6230F PS-0006-04
- Model #: 759950249228
- Item #: 9SIVB8UKDF9578
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For Liteon Pazer 700W Switching Power Supply PS-7701-2 ...
- Model #: 744623300276
- Item #: 9SIVB8UKCU6734
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-800QB A Server Power 856-851445 856-814
- Model #: 726727730456
- Item #: 9SIVRWKKXA3194
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for R48-4000e3 R48-3500E4 R48-3500e3 C400/48-3500E3
- Model #: 792597719266
- Item #: 9SIVRWKKXD7467
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for laser power supply CK-48V50A CO2POWER 48V50A ...
- Model #: 716837095279
- Item #: 9SIVB8UKX62434
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for HK280-22GP HK300-25 Small Power Supply API6PC06 FSP180-50PSA
- Model #: 716837089438
- Item #: 9SIVB8UKX60327
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-802A-1R 800W Ultra Micro Server Power Supply pws-802A-1r
- Model #: 726727817201
- Item #: 9SIVRWKKXB1010
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 250W Switching Power Supply S26113-E613-V70-01 CPB09-045D
- Model #: 744623298047
- Item #: 9SIVB8UKCU6432
- Return Policy: Magicpower Return Policy
Refurbished: For PSL-6C00V CT machine power supply server power supply
- Model #: 726099253102
- Item #: 9SIVRWKKXD1846
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For FSP 2U 700W Switching Power Supply FSP700-602UE ...
- Model #: 744623302805
- Item #: 9SIVB8UKCV8279
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module QC11CMUB
- Model #: 722954723537
- Item #: 9SIVT8HKWF3262
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for S7700/S9700 switch 2200W AC power module W2PSA2230
- Model #: 792597720552
- Item #: 9SIVRWKKXD7848
- Return Policy: Nytke team Return Policy
Refurbished: 5000 175W Power Supply 01K9862 01K9869 DPS-175GB A
- Model #: 703454716120
- Item #: 9SIVB8UKAJ6061
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for NSP6F-220P-S13 Industrial Control Equipment Machine Power Supply
- Model #: 792597985760
- Item #: 9SIVB8UKX57389
- 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.
