Power Supplies - Showing 2281 - 2304 of 18293 Products
Refurbished: 1PCS for T5820 T7820 T7920 066XHV M.2 to U.2 Adapter Box
- Model #: 792597724604
- Item #: 9SIVRWKKXD9060
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 12th Generation 13th Generation 7010MT 3910 3710 Desktop Power ...
- Model #: 716837089421
- Item #: 9SIVB8UKX60323
- Return Policy: Magicpower Return Policy
Refurbished: For SA5212M4 Server GW-CRPS550-2H 1 + 1550W Redundant Power Supply ...
- Model #: 726727776621
- Item #: 9SIVRWKKXB0091
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for R610 Server, Power Supply D717P-S0 DPS-764 AB A RN442 717W
- Model #: 792597708512
- Item #: 9SIVRWKKXD3834
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO DC 800W Power Supply 3FSEC280016 740-045932 JNPR800D932
- Model #: 759950244513
- Item #: 9SIVB8UKDA9212
- Return Policy: Magicpower Return Policy
Refurbished: For AT Power Supply FC-250U SPQ-4300 ZKS-250AE SY-250W SPQ-4400 ...
- Model #: 726727820348
- Item #: 9SIVRWKKXB1438
- Return Policy: Nytke team Return Policy
Refurbished: FN5270 M4 M5 800W Power Supply FSG032
- Model #: 753525946666
- Item #: 9SIVB8UKA99760
- Return Policy: Magicpower 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: MSL5030 MSL5026 Tape Library Power Supply RAS-2662P
- Model #: 722954724480
- Item #: 9SIVB8UKAA7116
- Return Policy: Magicpower Return Policy
Refurbished: ml110 g4 server power supply 416121-001 DPS-370AB-1 419029-001
- Model #: 703454723043
- Item #: 9SIVB8UKAJ6789
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SMU02B SMU02B1 SMU02C switching power supply monitoring
- Model #: 716837093374
- Item #: 9SIVB8UKX61681
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Industrial computer power supply SH300A8H+P4 ENH-0135
- Model #: 745635673952
- Item #: 9SIVSY0KUR7886
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For KIN-2C00V server 1200W Power Supply R2K-5C00V
- Model #: 703454719336
- Item #: 9SIVSY0KUT6424
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO R430 R330R340 R440 DS1500 550W Switching Power Supply ...
- Model #: 744623307275
- Item #: 9SIVB8UKD06329
- Return Policy: Magicpower Return Policy
Refurbished: For G1W2-5760V3V 2U Server Power Cage
- Model #: 703454719633
- Item #: 9SIVB8UKAJ6446
- Return Policy: Magicpower Return Policy
Refurbished: For DS-C9148S DS-C9148S-K9 Series Power Supply For DS-C48S-300AC ...
- Model #: 753525988925
- Item #: 9SIVB8UKAA7694
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for NXR75020 50-750V/0-25A/15KW Charging Pile Charging Module
- Model #: 792597717804
- Item #: 9SIVRWKKXD7028
- Return Policy: Nytke team Return Policy
Refurbished: For ML360G6/7 380G6/7 Power Supply 511777-001 499249-001 1pcs
- Model #: 726727725636
- Item #: 9SIVRWKKXA2639
- Return Policy: Nytke team Return Policy
Refurbished: For PC180LAA dedicated small power supply 180W PC280 rated 250w power ...
- Model #: 752804578826
- Item #: 9SIVRWKKXB2415
- Return Policy: Nytke team Return Policy
Refurbished: 15000W 270V 55A Power Supply Module For R240-15K
- Model #: 753525990768
- Item #: 9SIVB8UKAA7938
- Return Policy: Magicpower Return Policy
Refurbished: 2130W Power Supply H66158-011 PSSF222201A H66158-010 H66158-009
- Model #: 753525934847
- Item #: 9SIVSY0KUU5208
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: CSU3200ET-3-100 3200W Switched Power Supply
- Model #: 722954731907
- Item #: 9SIVB8UKAA5793
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For FSP 1U CPU8P*2 500W Switching Power Supply FSP500-601UE
- Model #: 744623311128
- Item #: 9SIVB8UKD12166
- Return Policy: Magicpower Return Policy
Refurbished: 71W 5V 10A Power Supply For P50-5
- Model #: 753525989830
- Item #: 9SIVB8UKAA7769
- 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.
