Power Supplies - Showing 1945 - 1968 of 17990 Products
Refurbished: KHACHIMO N240 V240 400W Switching Power Supply AA23650 3001846-01 ...
- Model #: 744623315867
- Item #: 9SIVB8UKD46476
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Medical microwave power supply
- Model #: 745635674508
- Item #: 9SIVB8UKDA0194
- Return Policy: Magicpower Return Policy
Refurbished: MSX6025 SX6036 300W Power Supply YM-11-1825 675170-001
- Model #: 753525944402
- Item #: 9SIVB8UKAA5371
- Return Policy: Magicpower Return Policy
Refurbished: FSP145-50NI for FSP GROUP INC 20-pin P3 small power supply
- Model #: 703454721254
- Item #: 9SIVB8UKAJ6610
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply FSP250-40ATV (PF) ESX300 NL03Z DPS-250CB A ...
- Model #: 716837086482
- Item #: 9SIVB8UKX59184
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for ACE-A630C-R10 ACE-A622C-R10 DPS-350AB-24G ...
- Model #: 716837087960
- Item #: 9SIVB8UKX59798
- Return Policy: Magicpower Return Policy
Refurbished: For Precision R7610 Server Power Cage 020T0X DD-3142-1F-LF
- Model #: 726727816372
- Item #: 9SIVRWKKXB0461
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO New Power Supply For NEMIC-LAMBDA 12V 4.4A 50W For EWS-50-12 ...
- Model #: 759950244162
- Item #: 9SIVB8UKDA9100
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For I24 Server Power Supply 2000W GW-SLIM2000 V03105M000000000
- Model #: 792597704019
- Item #: 9SIVRWKKXD2442
- 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: KHACHIMO 550W Power Supply DPS-550AB-54 A DPS-550AB-54A ...
- Model #: 744623298153
- Item #: 9SIVB8UKCU6430
- Return Policy: Magicpower Return Policy
Refurbished: OptiPlex XE2 3020 7020 9020 T1700 315W Power Supply H315ES-00 ...
- Model #: 753525934779
- Item #: 9SIVB8UKA99260
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for P1S-2400V-R(400W)
- Model #: 716837090649
- Item #: 9SIVB8UKX60842
- Return Policy: Magicpower Return Policy
Refurbished: LSUM1AC2500 Power Module CAR2512FPB-Z
- Model #: 703454717912
- Item #: 9SIVB8UKAJ6200
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZXD3000 V5.6 48V50A/3000W communication power supply
- Model #: 716837095514
- Item #: 9SIVB8UKX62591
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for E450 D650 6 + 4P Small Chassis Power PA-1181-10AC PA-5181-3A
- Model #: 792597982479
- Item #: 9SIVB8UKX56664
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply for 200W MITAC MPU-200REF 370-3162 Work Good
- Model #: 753525986785
- Item #: 9SIVB8UKAA8697
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for W03100G U1A-Q11200-DRBB AS2150G2 AS5300G2 AS5500 G2 ...
- Model #: 792597704958
- Item #: 9SIVRWKKXD2639
- Return Policy: Nytke team Return Policy
Refurbished: For server power supply DS850-9-401 48V 17.5A
- Model #: 752804575375
- Item #: 9SIVRWKKXB2005
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 80plus Platinum Suitable For Double 2080Ti 850W Switching Power ...
- Model #: 744623298320
- Item #: 9SIVB8UKCU6401
- Return Policy: Magicpower Return Policy
Refurbished: 650W For JPSU-650W-AC-AFI FS9022 740-044332 QFX5100 AC Power Supply
- Model #: 753525933680
- Item #: 9SIVB8UKA99170
- Return Policy: Magicpower Return Policy
Refurbished: 39Y7378 39Y7377 DPS-835AB A X3400 X3500 X3650 Server Power
- Model #: 722954734922
- Item #: 9SIVB8UKAA6097
- Return Policy: Magicpower Return Policy
Refurbished: For BTX-600SE Server Power Supply 600W
- Model #: 752804576174
- Item #: 9SIVRWKKXB2054
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-550AB-23A switch 500W
- Model #: 752804577188
- Item #: 9SIVRWKKXB2157
- 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.
