Power Supplies - Showing 2161 - 2184 of 18222 Products
Refurbished: Power Supply 341-10027-01 700W PWR-C3-750WDC-F
- Model #: 753525957525
- Item #: 9SIVSY0KUT2600
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For RP30SA-P Power Module 300W Server Redundant Power
- Model #: 726727722536
- Item #: 9SIVRWKKXA2218
- Return Policy: Nytke team Return Policy
Refurbished: 241114.601 FLAYPACK 2880 48V 2880W For Eltek Power Supply
- Model #: 724780182410
- Item #: 9SIVB8UKA98902
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R48-2900U 48V50A power supply
- Model #: 716837094678
- Item #: 9SIVB8UKX62268
- Return Policy: Magicpower Return Policy
Refurbished: 645W Server Power Supply For SP645-PS
- Model #: 722954986956
- Item #: 9SIVB8UKAA6413
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO NP3020M2 VM500SH 300W Switching Power Supply BTX-3031
- Model #: 744623302195
- Item #: 9SIVB8UKCV8211
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP150-10GSV hard disk, video recorder DVR power supply 150W 8 ...
- Model #: 716837091783
- Item #: 9SIVB8UKX61129
- Return Policy: Magicpower Return Policy
Refurbished: For A236 300- 2234-01 T5410/5120 CF00300-2234 ECD14020013 Power ...
- Model #: 726727774955
- Item #: 9SIVRWKKXA4227
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO R300 400W Switching Power Supply DPS-400YB-1 A D400P-01 ...
- Model #: 744623304120
- Item #: 9SIVB8UKCW6167
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO NAS Small 1U NSC-400/401/410 150W Switching Power Supply ...
- Model #: 744623302676
- Item #: 9SIVB8UKCV8265
- Return Policy: Magicpower Return Policy
Refurbished: YH-7761A 760W For 3Y Redundant 2+1 3U Server Hot-swap Power Supply ...
- Model #: 724780182588
- Item #: 9SIVB8UKA98923
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 48V100AH ESM-48100B1
- Model #: 716837095026
- Item #: 9SIVB8UKX62431
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For YM-3531A 530W server power supply YM-3531AAR
- Model #: 792597703814
- Item #: 9SIVRWKKXD2456
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO X4640 X4600 M2 T5440 1133W Power Supply SPASUNM-08G ...
- Model #: 759950242328
- Item #: 9SIVB8UKDA8787
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 390 790 990 7010 9010 Power Supply L240AS-00 L240AS-01 ...
- Model #: 744623313061
- Item #: 9SIVB8UKD21712
- Return Policy: Magicpower Return Policy
Refurbished: For M1S2-5400V4H Server Power Supply 1+1 M1S-3400V
- Model #: 722954731433
- Item #: 9SIVB8UKAA5754
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO M310 M410 M415 M510 M610 10Pin 400W Power Supply ...
- Model #: 744623306384
- Item #: 9SIVB8UKD01981
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 150W LWP-F315 Power Supply LWP-F315 LWP320 LWP330 ...
- Model #: 744623311456
- Item #: 9SIVB8UKD12235
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 5V40A 200W Switching Power Supply GW-EP200WV5AA-00
- Model #: 744623312057
- Item #: 9SIVB8UKD19627
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For 36V9.7A 350W Power Supply SYN-350-S36
- Model #: 759950241901
- Item #: 9SIVB8UKDA8761
- Return Policy: Magicpower Return Policy
Refurbished: For FSP ACE-A618A FSP250-60PLN SFX-0225A FSP900-80GLN Power Supply
- Model #: 726727819335
- Item #: 9SIVRWKKXB1363
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO DC 860W Switching Power Supply DG1W-3860V DG1W2-5860V3V
- Model #: 726099223105
- Item #: 9SIVB8UKCU6301
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for MHG2-6300P /6400P(ROHS) 300W/400W industrial computer power ...
- Model #: 716837085232
- Item #: 9SIVB8UKX58402
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply L240ES-00 V3268 3660 3668 3470 3050 L260EBM-00
- Model #: 716837089100
- Item #: 9SIVB8UKX60290
- 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.
