Power Supplies - Showing 2017 - 2040 of 17942 Products
Refurbished: PSU For Fujitsu CELSIUS M740 650W Switching Power Supply DPS-600AB-5 A ...
- Model #: 753525934816
- Item #: 9SIVB8UKA99277
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 078-000-021 800W SPS CX3-80
- Model #: 716837083573
- Item #: 9SIVB8UKX57584
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For 45W8270 DS8000 5/12V Power Supply Module
- Model #: 716837096436
- Item #: 9SIVB8UKX62720
- Return Policy: Magicpower Return Policy
Refurbished: For 24V 60A Power Supply For SMPS1002H-l SMPS1002H-1
- Model #: 753525990690
- Item #: 9SIVB8UKAA7911
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP250-50PLB 250W
- Model #: 792597705115
- Item #: 9SIVRWKKXD2642
- Return Policy: Nytke team Return Policy
Refurbished: 550W Switching Power Supply DPS-550AB-1A DPS-550AB-1 A
- Model #: 753525944563
- Item #: 9SIVB8UKAA5396
- Return Policy: Magicpower Return Policy
Refurbished: For PC-224848A0 (58V) power supply 145~ 300V dual-channel 58V7.3A9V4A
- Model #: 752804575108
- Item #: 9SIVRWKKXB1934
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For 3Y DC 650W Switching Power Supply YM-2651J ...
- Model #: 744623301440
- Item #: 9SIVB8UKCV8151
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Switching Power Supply RM-4514-00
- Model #: 744623316833
- Item #: 9SIVB8UKD64473
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for HD4825-3/HD4830-3 Communication Power Supply
- Model #: 716837094371
- Item #: 9SIVB8UKX62083
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP250-60GTV (PF) ST-P0620PAC FSP500-50FDB NPS-400CB B Power ...
- Model #: 716837087120
- Item #: 9SIVB8UKX59348
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZXD2400 Communication Power Module V4.3 V4.1 V4.0 48V 50A Power ...
- Model #: 792597718573
- Item #: 9SIVRWKKXD7194
- Return Policy: Nytke team Return Policy
Refurbished: m5790N-00 m4600d-10 m6600d-10 m4630d-10 Power Supply 14-pin
- Model #: 722954733857
- Item #: 9SIVB8UKAA5980
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 341-0401-03 3000W PWR-3KW-AC-V2
- Type: ATX
- Model #: 703454737507
- Item #: 9SIVSY0KUT9241
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for Z420 DPS-400AB-13B 749552-001 749710-001 Workstation Power ...
- Model #: 792597725816
- Item #: 9SIVRWKKXD9510
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For R520 G7 server power DD-3151-3F-LF
- Model #: 752804572046
- Item #: 9SIVRWKKXA2018
- Return Policy: Nytke team Return Policy
Refurbished: 10-pin HK280-73PP PA-2181-3 PCK014 FSP180-20TLA Power Supply ...
- Model #: 722954733321
- Item #: 9SIVB8UKAA5920
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for APR48-3G communication power module, switching power supply 54V ...
- Model #: 792597719532
- Item #: 9SIVRWKKXD7470
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FSP024-DEEC1 FSP250-RBAN2 FSP025-DYAA3 FSP036-DGAA1 power ...
- Model #: 716837087403
- Item #: 9SIVB8UKX59362
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R1AA2651C APM12v0001 650w FSH092-00AG 471100000580 Power ...
- Model #: 792597710706
- Item #: 9SIVRWKKXD4376
- Return Policy: Nytke team Return Policy
Refurbished: For 781533-001 E7W10-04402 3PAR 9000
- Model #: 752804573067
- Item #: 9SIVRWKKXB1657
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-500AB-9D E A server redundant power module
- Model #: 703454722787
- Item #: 9SIVB8UKAJ6739
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For G200 G400 3286549-A 1.6TB SSD H1C-P1R6SS AV392A
- Model #: 716837096214
- Item #: 9SIVB8UKX62729
- Return Policy: Magicpower Return Policy
Refurbished: FSA016 JPSU-650W-DC-AFI 740-038949 QFX5100-48T 650W DC Power ...
- Model #: 753525947465
- Item #: 9SIVB8UKA99886
- 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.
