Power Supplies - Showing 2353 - 2376 of 18360 Products
Refurbished: LKT50F-525 For Industrial Medical Equipment Power Supply ...
- Model #: 724780778415
- Item #: 9SIVB8UKAA6646
- Return Policy: Magicpower Return Policy
Refurbished: For MRT-6320P-R Industrial Server Power Module 320W
- Model #: 722954727177
- Item #: 9SIVB8UKAA7398
- Return Policy: Magicpower Return Policy
Refurbished: SUU180A-108 For SINPRO Switching Power Supply
- Model #: 753525949612
- Item #: 9SIVB8UKAA0165
- Return Policy: Magicpower Return Policy
Refurbished: For 080 7070 7080MT Desktop Power Graphics Card 6 + 8 500W Power Supply
- Model #: 726727732733
- Item #: 9SIVRWKKXA3681
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 400W Power Supply FSP400-60PFB FSP400-60PFL FSP400-70PFL ...
- Model #: 744623312446
- Item #: 9SIVB8UKD19573
- Return Policy: Magicpower Return Policy
Refurbished: For Power Supply 760W YH-7761A YM-7421F YM-7381C FSP400-70MPD
- Model #: 722954987038
- Item #: 9SIVB8UKAA6441
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 1100W power supply YM-2112A YM-2112AAR
- Model #: 716837084969
- Item #: 9SIVB8UKX58403
- Return Policy: Magicpower Return Policy
Refurbished: PSU For FLEXTRONICS 1100W Power Supply EMC-S-1100ADU00 071-000-711
- Model #: 753525934724
- Item #: 9SIVB8UKA99286
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 12 pins 500W power supply FSP500-50AAGA 8 pins
- Model #: 716837089315
- Item #: 9SIVB8UKX60328
- Return Policy: Magicpower Return Policy
Refurbished: For POWEREX REX III 500W Switching Power Supply REX III V.3
- Model #: 753525935998
- Item #: 9SIVB8UKA99440
- Return Policy: Magicpower Return Policy
Refurbished: For HPML570G3 DL580G3G4 Power Supply 337867-001 364360-001 ...
- Model #: 722954724756
- Item #: 9SIVB8UKAA7169
- Return Policy: Magicpower Return Policy
Refurbished: 241114.300 FLATPACK 1500 24V/50A 230Vac Power Supply Module Fast Ship
- Model #: 753525934670
- Item #: 9SIVB8UKA99267
- Return Policy: Magicpower Return Policy
Refurbished: For 6266 97P3867 97P5101 P615 Mini Power Supply 7000731-0000 700W
- Model #: 726727775044
- Item #: 9SIVRWKKXA4191
- Return Policy: Nytke team Return Policy
Refurbished: T310 Server Power Supply A400EF-S0 D400EF-S0 R101K N884K 400W
- Model #: 722954734175
- Item #: 9SIVB8UKAA6005
- Return Policy: Magicpower Return Policy
Refurbished: Communication Server Power Module For 3Y YM-2651K 650W
- Model #: 724780183516
- Item #: 9SIVT8HKWF3056
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For PS-4801-1Q1 POWER 1U 800W Server Power Supply
- Model #: 752804577485
- Item #: 9SIVRWKKXB2217
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for ETP4890-A2 Switching Power Supply 48V90A R4830G
- Model #: 716837094463
- Item #: 9SIVB8UKX62119
- Return Policy: Magicpower Return Policy
Refurbished: For switch power adapter AYS220Y-042 4.2V45A
- Model #: 703454721742
- Item #: 9SIVB8UKAJ6660
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PWR-CC1-400WAC PWR-CC1-400WDC power supply
- Model #: 716837084136
- Item #: 9SIVB8UKX57713
- Return Policy: Magicpower Return Policy
Refurbished: For industrial computer power supply SPI300A8B8 FSP300-60ATV - 5V
- Model #: 703454722701
- Item #: 9SIVB8UKAJ6757
- Return Policy: Magicpower Return Policy
Refurbished: EFRP-S753 750W Server Power Supply Redundant Hot-swap
- Model #: 753525987690
- Item #: 9SIVB8UKAA8766
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DS-B20 EP1000-UBZ 1000W GE Power Redundant Server
- Model #: 792597715138
- Item #: 9SIVRWKKXD6229
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 320W Switching Power Supply MRT-6320P-R
- Model #: 744623301730
- Item #: 9SIVB8UKCV8172
- Return Policy: Magicpower Return Policy
Refurbished: VNX5100 VNX5300 VNX5500 CX4 1200W Power Supply SG6004 078-000-085 ...
- Model #: 753525944631
- Item #: 9SIVB8UKAA5389
- 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.
