Power Supplies - Showing 2233 - 2256 of 17940 Products
Refurbished: CSU520Y Communication Power Monitoring Modul
- Model #: 753525956535
- Item #: 9SIVB8UKAA8859
- Return Policy: Magicpower Return Policy
Refurbished: C6220 Server Power Supply 1400W D1200E-S1 RN0HH CN35N 0GJJRR
- Model #: 722954722165
- Item #: 9SIVB8UKAA6880
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for S5500 5120 switch POE power supply PSL520-AD GPL520-ADH
- Model #: 792597728336
- Item #: 9SIVB8UKX32986
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For EOS 24V 6.25A 150W Power Supply ...
- Model #: 759950244216
- Item #: 9SIVB8UKDA9124
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for Power Supply VT450AB220A Power Server 450W
- Model #: 792597715381
- Item #: 9SIVRWKKXD6245
- Return Policy: Nytke team Return Policy
Refurbished: New Power Supply For DZY-48/15HIII 48V 15A
- Model #: 753525991970
- Item #: 9SIVB8UKAA8220
- Return Policy: Magicpower Return Policy
Refurbished: Power Module FLATPACK2 220/2000 HE Output 245.3V 8.1 241115.815
- Model #: 753525985580
- Item #: 9SIVB8UKAA9214
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP400-80AGNBR 400W Power Supply
- Model #: 716837084129
- Item #: 9SIVB8UKX57709
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for APR48-3G communication power supply 48V37A
- Model #: 716837095231
- Item #: 9SIVB8UKX62463
- Return Policy: Magicpower Return Policy
Refurbished: For AD151M12-1M1 FiberHome Switch Power Module PM-AC150W-12
- Model #: 703454718735
- Item #: 9SIVB8UKAJ6343
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO S510 S710 M91z M71z 14Pin 180W Power Supply PS-2181-01 ...
- Model #: 744623301907
- Item #: 9SIVB8UKCV8191
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for X5-030S 020S X7 small chassis power supply FSP180-10TGBAA ...
- Model #: 792597982202
- Item #: 9SIVB8UKX56650
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SFX power supply FSP250-60GNV SFXA5201A
- Model #: 792597706518
- Item #: 9SIVRWKKXD3252
- Return Policy: Nytke team Return Policy
Refurbished: For SUN V250 Power Supply 460W 3001588-01 300-1588 AA22960 X7414A
- Model #: 722954725395
- Item #: 9SIVB8UKAA7182
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-665-PQ 665W Power Supply
- Model #: 726727731651
- Item #: 9SIVRWKKXA3353
- Return Policy: Nytke team Return Policy
Refurbished: HF800W-S-48 800W
- Model #: 753525985672
- Item #: 9SIVB8UKAA9216
- Return Policy: Magicpower Return Policy
Refurbished: LPQ252 DC 120-300V 3.4A For ASTEC Switching Power Supply
- Model #: 753525947724
- Item #: 9SIVB8UKA99938
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 285Pro 600 800G3 Power Supply 310W PCH023 D16-180P2A ...
- Model #: 792597707072
- Item #: 9SIVRWKKXD3474
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For TL2000/4000 tape drive power supply 0FW760 KM80/FL/E/C
- Model #: 792597703937
- Item #: 9SIVRWKKXD2419
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO SU For FSP 350W Switching Power Supply FSP350-50AHNCH
- Model #: 744623316062
- Item #: 9SIVB8UKD46462
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for M10-1 Power Supply 7060781 7082782 7088116 DPS-770CB D
- Model #: 716837085577
- Item #: 9SIVB8UKX58621
- Return Policy: Magicpower Return Policy
Refurbished: AIR-PWR-5500-AC SPACSCO-20 For 5500 Series Power Supply
- Model #: 753525949216
- Item #: 9SIVB8UKAA0101
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For SL POWER MINT1150A 18V8.33A 150W Power Supply ...
- Model #: 726099222252
- Item #: 9SIVB8UKCU6164
- Return Policy: Magicpower Return Policy
Refurbished: For S510 S560 S590 S710 S720 Power Supply APA005 HKF1502-3B 03T9022
- Model #: 726727729498
- Item #: 9SIVRWKKXA3063
- Return Policy: Nytke team 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.
