Power Supplies - Showing 1969 - 1992 of 17946 Products
Refurbished: TotalStorage DS300 DS400 Controller Battery 13N1785
- Model #: 722954723773
- Item #: 9SIVB8UKAA7026
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CRPSHD550D2 280V server power supply 550W
- Model #: 792597727278
- Item #: 9SIVB8UKX32599
- Return Policy: Magicpower Return Policy
Refurbished: SSG520 FSP350-601U FSP3501UR-JNP 350W
- Model #: 753525984736
- Item #: 9SIVB8UKAA9138
- Return Policy: Magicpower Return Policy
Refurbished: EFRP-S407 FG-600C FG-1000C 400W For FORTIGATE Redundant Power ...
- Model #: 753525948240
- Item #: 9SIVB8UKA99999
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 54.5V 12V 150W Power Supply GW-TO150WDV54 ...
- Model #: 759950248382
- Item #: 9SIVB8UKDF9481
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZXDU48B900 Communication Power Supply-48V 48V90A
- Model #: 716837093534
- Item #: 9SIVB8UKX61929
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for HK340-71FP PS-5241-02 PC9053 PS-5181-02VG PC9059 Small ...
- Model #: 716837088998
- Item #: 9SIVB8UKX60293
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 40-72V DC power supply 800W CRPSD800D2
- Model #: 792597709533
- Item #: 9SIVRWKKXD4010
- Return Policy: Nytke team Return Policy
Refurbished: For DL380Gen9 G9 500W Power Supply 723594-001 754377-001 720478-B21 ...
- Model #: 726727817874
- Item #: 9SIVRWKKXB0996
- Return Policy: Nytke team Return Policy
Refurbished: LCA75S-6 Original Disassembly Switching Power Supply 6V/12.5A
- Model #: 753525957310
- Item #: 9SIVB8UKAA8966
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO HTPC Micro DVR Rated 250W Peak 350W Switching Power Supply ...
- Model #: 744623314815
- Item #: 9SIVB8UKD21867
- Return Policy: Magicpower Return Policy
Refurbished: For T410 Server, Power Supply F5XMD G686J 580W A580E-S0 D580E-S0
- Model #: 752804574873
- Item #: 9SIVRWKKXB1941
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for BTX-400P4 350W desktop 24 pins 8 pins, graphics card 6 pins
- Model #: 792597983032
- Item #: 9SIVB8UKX56796
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS adapter for SFXA1251A
- Model #: 792597723478
- Item #: 9SIVRWKKXD8764
- Return Policy: Nytke team Return Policy
Refurbished: Server Power Supply X3650 M5 1300W 00Y9106 N33501L 00Y9107
- Model #: 753525984651
- Item #: 9SIVB8UKAA9107
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SUN U20 Ultra20 M2 Workstation Power Supply 300-1794, 300-1950, ...
- Model #: 716837091950
- Item #: 9SIVB8UKX61151
- Return Policy: Magicpower Return Policy
Refurbished: 48V 50A Power Supply Module For ESR-48/56C N DPR-48/50C ESR-48/56CN
- Model #: 753525991406
- Item #: 9SIVB8UKAA8049
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X3200M3 DPS-400AB-9 A 46M6678 46M6675 00J6684 J6689 power ...
- Model #: 792597709168
- Item #: 9SIVRWKKXD4034
- Return Policy: Nytke team Return Policy
Refurbished: For JZX4820-300 Power Supply
- Model #: 722954726293
- Item #: 9SIVB8UKAA7291
- Return Policy: Magicpower Return Policy
Refurbished: T5600 T5610 D825EF-00 D825EF-01 H825ED-00 825W
- Model #: 753525955965
- Item #: 9SIVSY0KUS4027
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO For TCR 120W Switching Power Supply TG-1201
- Model #: 744623316895
- Item #: 9SIVB8UKD64497
- Return Policy: Magicpower Return Policy
Refurbished: For DL160G6/165G6/G7 Power Supply 506077-002/1 506247-002/1 ...
- Model #: 752804574200
- Item #: 9SIVRWKKXB1757
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For B2500 Workstation Power Supply 600W 300-1667-03 W600GC3
- Model #: 716837095538
- Item #: 9SIVB8UKX62599
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 2800W server power supply 1PDR6 D2800E-S1 NCMPF FX9WJ
- Model #: 716837088240
- Item #: 9SIVB8UKX59816
- 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.
