Power Supplies - Showing 1945 - 1968 of 17940 Products
Refurbished: 1950W Switching Power Supply HSP1950-S12A
- Model #: 753525941920
- Item #: 9SIVB8UKAA5092
- Return Policy: Magicpower Return Policy
Refurbished: For DL580G3/G4 power supply 337867-501 406421-001 364360-001
- Model #: 726727724967
- Item #: 9SIVRWKKXA2658
- Return Policy: Nytke team Return Policy
Refurbished: For ZL145WA S30122-K5950-S100-3 S30122-X5950-X100 Power Supply
- Model #: 726727777123
- Item #: 9SIVRWKKXB0128
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for PFE1500-12-054NAC AC/DC CONVERTER 12V 1500W S457 Power ...
- Model #: 792597720804
- Item #: 9SIVRWKKXD7989
- Return Policy: Nytke team Return Policy
Refurbished: For TDK-LAMBDA HWS300-5 Switching Power Supply Module 5V/60A
- Model #: 753525988307
- Item #: 9SIVSY0KUT6439
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For Traco Power TXL035-12S Module
- Model #: 753525933369
- Item #: 9SIVB8UKA99145
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 00Y4643 00Y4594 90Y7689 44X3320
- Model #: 716837098034
- Item #: 9SIVB8UKX63074
- Return Policy: Magicpower Return Policy
Refurbished: For POWER-ONE Power Supply For MAP110-3000P
- Model #: 753525989793
- Item #: 9SIVB8UKAA7753
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply 24V 14A 300W PBA300F-24
- Model #: 724780183134
- Item #: 9SIVB8UKA98948
- Return Policy: Magicpower Return Policy
Refurbished: W2PSD2200 S12704 S12700E-4 Series Switch DC Power Module 02270117
- Model #: 724780181482
- Item #: 9SIVB8UKA98824
- Return Policy: Magicpower Return Policy
Refurbished: For YM-4151A host power supply 3Y HDX6000 7000 HDX8000
- Model #: 726099251481
- Item #: 9SIVRWKKXD1506
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 80plus Gold 1U 500W Switching Power Supply DPS-500YB B ...
- Model #: 744623307121
- Item #: 9SIVB8UKD06363
- Return Policy: Magicpower Return Policy
Refurbished: YM-2821A 820W Original For 3Y Server Redundant Power Supply
- Model #: 724780181086
- Item #: 9SIVB8UKA98766
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ST-300U-AC 300W 1U server industrial computer power supply
- Model #: 792597715763
- Item #: 9SIVRWKKXD6394
- Return Policy: Nytke team Return Policy
Refurbished: For NF5270 5460M4 server power supply YZCA-00372-102 YPCB-00372-1P1
- Model #: 726727821536
- Item #: 9SIVRWKKXB1617
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for FSP1200-20ERM N5280 8480 M4 Server Power Supply
- Model #: 792597727407
- Item #: 9SIVB8UKX32801
- Return Policy: Magicpower Return Policy
Refurbished: For LSUM1AC2500 Power Module H3C S10504 S10508 S10512 Switch
- Model #: 722954721274
- Item #: 9SIVTFFKXZ7536
- Return Policy: Zienroylein Return Policy
Refurbished: For DL320G4 Server Power Supply 394982-001 PS-7451-2C-ROHS
- Model #: 726727730944
- Item #: 9SIVRWKKXA3263
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PSR150-A PSR150-A1/LSPM2150A switching power supply
- Model #: 792597728350
- Item #: 9SIVB8UKX33138
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS 24V 4.5A Power Supply R100U-24
- Model #: 724780182519
- Item #: 9SIVB8UKA98895
- Return Policy: Magicpower Return Policy
Refurbished: For PSR320-D Huasan H3C S7502E DC Power Module PSR320-D
- Model #: 722954723629
- Item #: 9SIVSY0KUU0567
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 700W Power Supply UCS-PSU-6248UP-AC 7001591-J200 7001650-J200 ...
- Model #: 753525942859
- Item #: 9SIVB8UKAA5167
- Return Policy: Magicpower Return Policy
Refurbished: A840R-G 3Y YM-2102F 1000W Server Power Supply YM-2102FBR
- Model #: 753525933901
- Item #: 9SIVB8UKA99206
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P520 P720 Workstation Power Supply 1000W DPS-1000AB-12 A ...
- Model #: 716837092261
- Item #: 9SIVB8UKX61341
- 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.
