Power Supplies - Showing 1921 - 1944 of 17933 Products
Refurbished: DPS-200PB-129 A Power Supply 406402-001 406832-001 EPS 116
- Model #: 722954724435
- Item #: 9SIVB8UKAA7095
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module EPW30-48A EPW30-48A E 53.5V 30A
- Model #: 724780181543
- Item #: 9SIVT8HKWF2804
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for 021312 Firewall Power PAC-350WD-L
- Model #: 792597721139
- Item #: 9SIVRWKKXD7996
- Return Policy: Nytke team Return Policy
Refurbished: For P900 P910 1300W Workstation Power Supply DPS-1300FB FRU: 54Y8906
- Model #: 792597702855
- Item #: 9SIVRWKKXD2191
- Return Policy: Nytke team Return Policy
Refurbished: PA-1151-2H For H3C 5500-52C-EI Switch Power Supply High-Quality
- Model #: 724780777739
- Item #: 9SIVSYTKUU7936
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 2U 460W Server Power Supply SeaSonic SS-460H2U 80 PLUS
- Model #: 703454719831
- Item #: 9SIVB8UKAJ6432
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PWS-1K68A-1R 1620W server power supply
- Model #: 792597984770
- Item #: 9SIVB8UKX57186
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for TS140 440 P410 Workstation Server Power Supply FSP450-50ETN FRU: ...
- Model #: 716837083054
- Item #: 9SIVB8UKX57483
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 10-pin power supply 750W FSP500-20AGP PA-3311-1 Dual graphics ...
- Model #: 716837088714
- Item #: 9SIVB8UKX60091
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP300-60GNV switching power supply 8 serial port 4 parallel port
- Model #: 716837083467
- Item #: 9SIVB8UKX57586
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for AC240ES-00 OptiPlex7010 9010 SFF Small Chassis Power Supply
- Model #: 792597707140
- Item #: 9SIVRWKKXD3561
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for ACE-A140A industrial computer power supply 400W
- Model #: 792597714780
- Item #: 9SIVRWKKXD6091
- Return Policy: Nytke team Return Policy
Refurbished: For BEL POWER Power Supply For MAP55-4004
- Model #: 753525991963
- Item #: 9SIVB8UKAA8216
- Return Policy: Magicpower Return Policy
Refurbished: For PE2800 Power Supply 7000815-0000 D3014 GD418
- Model #: 726727725025
- Item #: 9SIVRWKKXA2615
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for L305P-01 L305P-02 N305P-06 B255PM-00 Power Supply
- Model #: 716837091479
- Item #: 9SIVB8UKX61061
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS Power Supply for FSP550-20ERM Server test well
- Model #: 792597715039
- Item #: 9SIVRWKKXD6067
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for Brocade23-0000067-01 psu2000w dcx-8510 481552-001 ak863a ...
- Model #: 792597727650
- Item #: 9SIVB8UKX32806
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 300W Switching Power Supply GW-EPS1U300WB
- Model #: 744623315270
- Item #: 9SIVB8UKD21945
- Return Policy: Magicpower Return Policy
Refurbished: For A840R-G10 Server Power Supply YM-2102F 1000W YM-2102FBR 2102FAR
- Model #: 726727774740
- Item #: 9SIVRWKKXA4232
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For PDC2000S12-B1 2000W
- Model #: 753525989113
- Item #: 9SIVB8UKAA7726
- Return Policy: Magicpower Return Policy
Refurbished: For HQ-1650W-02A Mining Power Supply,Support 6-8 Card ATX Server
- Model #: 724780182106
- Item #: 9SIVSY0KUS2414
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO Power Supply For FSP 550W For FSP550-60PLG
- Model #: 759950245329
- Item #: 9SIVB8UKDA9260
- Return Policy: Magicpower Return Policy
Refurbished: For DAR850-4812A Power Module PWR850A-POE
- Model #: 722954727849
- Item #: 9SIVB8UKAA7469
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for F5 i5600 i5800 i10000 power supply i5000 M1845 PWR-0306-05
- Model #: 792597727803
- Item #: 9SIVB8UKX32819
- 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.
