Power Supplies - Showing 2113 - 2136 of 17943 Products
Refurbished: KHACHIMO 1200W Power Supply PWS-1K27A-1R
- Model #: 744623314860
- Item #: 9SIVB8UKD21888
- Return Policy: Magicpower Return Policy
Refurbished: EX3400-48P Switch Power Supply JPSU-920-AC-AFO 640-060601
- Model #: 722954727580
- Item #: 9SIVB8UKAA7417
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V12.5A 150W Power Supply HS150-12-NP
- Model #: 759950246098
- Item #: 9SIVB8UKDA9371
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DS460S switching power supply DS460S-3-402 server power supply ...
- Model #: 792597712465
- Item #: 9SIVRWKKXD4738
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for Z840 DPS-1125AB-1A 758470-001 719799-001 Workstation Power ...
- Model #: 792597725274
- Item #: 9SIVRWKKXD9370
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 7080 SFF 6Pin 200W Power Supply 0KMJP5 0664DM 0HJ34C 664DM ...
- Model #: 744623310633
- Item #: 9SIVB8UKD12119
- Return Policy: Magicpower Return Policy
Refurbished: QFX5100-48T 650W Power Supply FSA016 JPSU-650W-DC-AFI 740-038949
- Model #: 753525941647
- Item #: 9SIVB8UKAA5034
- Return Policy: Magicpower Return Policy
Refurbished: FSP300-60GHz -60SNT GLT FSP250-50SAV TFX Power Supply With 6P Display ...
- Model #: 703454720509
- Item #: 9SIVB8UKAJ6500
- Return Policy: Magicpower Return Policy
Refurbished: 114-00065 TDPS-750AB A 750W PSU for DS2246 X519A-R6
- Model #: 703454718520
- Item #: 9SIVB8UKAJ6302
- Return Policy: Magicpower Return Policy
Refurbished: For SUN Fire V480 Server Power Supply, 300-1480-05, Tyco A157
- Model #: 722954726040
- Item #: 9SIVB8UKAA7246
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M410 M415 M437 M75S M610 600W
- Model #: 716837089247
- Item #: 9SIVB8UKX60299
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DS5020 controller 59Y5150 59Y5251 59Y5253 59Y5252
- Model #: 731029999708
- Item #: 9SIVRWKKXD1331
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO For FSP P3 20PIN 145W Switching Power Supply FSP145-50NI
- Model #: 744623317472
- Item #: 9SIVB8UKD64632
- Return Policy: Magicpower Return Policy
Refurbished: Pws-1K63s-1R Server Power Supply 1620W 220V 1U
- Model #: 722954724459
- Item #: 9SIVB8UKAA7103
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP1200-50FS FSP1200-50FS Cage GPRS 500W 800W 1200W 2U ...
- Model #: 716837091462
- Item #: 9SIVB8UKX61057
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 1u power supply 500w flex dps-500ab-5b itx M34 K88
- Model #: 716837089353
- Item #: 9SIVB8UKX60296
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZXD030 S480 communication power supply, switching power supply ...
- Model #: 792597717712
- Item #: 9SIVRWKKXD7019
- Return Policy: Nytke team Return Policy
Refurbished: PA-1151-2H For H3C 5500-52C-EI Switch Power Supply
- Model #: 753525955903
- Item #: 9SIVSYTKUU8334
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: KHACHIMO 550W Switching Power Supply GPS-550LB G
- Model #: 744623311616
- Item #: 9SIVB8UKD12239
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 7040 3650 3040 8Pin 240W Power Supply H240EM-00 L240AM-00 ...
- Model #: 726099221866
- Item #: 9SIVB8UKCU6148
- Return Policy: Magicpower Return Policy
Refurbished: 125W Power Supply R1N-3125P
- Model #: 703454716373
- Item #: 9SIVB8UKAJ5990
- Return Policy: Magicpower Return Policy
Refurbished: HWS100A-12/A Switching Power Supply Input 100-240Vac 50-60Hz 1.4A ...
- Model #: 703454925140
- Item #: 9SIVSY0KUT1696
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1100W Catalyst 3850 Switch Power Supply PWR-C1-1100WAC
- Model #: 753525984699
- Item #: 9SIVB8UKAA9123
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for A200 power supply 300-1736 300-1737 320W power supply
- Model #: 792597984404
- Item #: 9SIVB8UKX57089
- 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.
