Power Supplies - Showing 2257 - 2280 of 18338 Products
Refurbished: LDA50F-9 Original Disassembly Switching Power Supply 9V/5.6A
- Model #: 753525986105
- Item #: 9SIVB8UKAA8467
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for N55-PAC-750W-B N55-PAC-750W 5548UP/P
- Model #: 792597726493
- Item #: 9SIVRWKKXD9512
- Return Policy: Nytke team Return Policy
Refurbished: For B500 B505 b50r1 b510 power supply PC9024 HK300-95FP S1
- Model #: 726727733884
- Item #: 9SIVRWKKXA4050
- Return Policy: Nytke team Return Policy
Refurbished: FLEX SI4093 Switch 95Y3314 95Y3315
- Model #: 722954736483
- Item #: 9SIVB8UKAA6289
- Return Policy: Magicpower Return Policy
Refurbished: PWS-2K03P-1R Redundant Power Supply 2000W CPR-2021-2M11 ...
- Model #: 722954720994
- Item #: 9SIVB8UKAA6717
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FLEX Small 1U Rated 180W Switching Power Supply F-3000L ...
- Model #: 744623314365
- Item #: 9SIVB8UKD21828
- Return Policy: Magicpower Return Policy
Refurbished: R530/R630/R730 Server Power Supply 750W E750E-S1 00XW8W
- Model #: 722954730924
- Item #: 9SIVB8UKAA5699
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Switching Power Supply For TYCO 300-1852 V215 V245 V445 X4200 ...
- Model #: 759950241680
- Item #: 9SIVB8UKDA8721
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 510 ATX-PFC 550W T51X-TY
- Model #: 759950247903
- Item #: 9SIVB8UKDF9436
- Return Policy: Magicpower Return Policy
Refurbished: 3620i DC48V 700W Switching Power Supply H700ED-S0 0C0X78
- Model #: 753525943351
- Item #: 9SIVSY0KUU3160
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: SFX-0540H2 industrial computer small power supply 400W
- Model #: 703454722978
- Item #: 9SIVB8UKAJ6768
- Return Policy: Magicpower Return Policy
Refurbished: SPR2C620 SPR1C620 Array Networks APV 3520 5200 620W Switching Power ...
- Model #: 753525948585
- Item #: 9SIVB8UKAA0032
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for I8000 Tool Box Power Supply X0315 SP788 SP0788
- Model #: 716837084044
- Item #: 9SIVB8UKX57677
- Return Policy: Magicpower Return Policy
Refurbished: For ST-400NAG-05F 400W Server Module Power Supply
- Model #: 722954731617
- Item #: 9SIVB8UKAA5731
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M3000 Server Power Supply CA01022-0720 300-2193
- Model #: 792597726806
- Item #: 9SIVB8UKX32518
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for P5 P7 P8 Workstation 1000W 1400W Power Supply 5P50V03207 ...
- Model #: 716837083672
- Item #: 9SIVB8UKX57575
- Return Policy: Magicpower Return Policy
Refurbished: PowerEdge 6850 1470W Power Supply SP574 SP574-Y01A PS-2142-1D DU764 ...
- Model #: 753525941333
- Item #: 9SIVB8UKAA4964
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ML150G6 ML330 DPS-460DB-2 A 466610-001 519742 Server Power ...
- Model #: 792597724840
- Item #: 9SIVRWKKXD9256
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for P1G-6300P P1G-6250P 1U power supply P1U-6200P industrial ...
- Model #: 792597728206
- Item #: 9SIVB8UKX32985
- Return Policy: Magicpower Return Policy
Refurbished: DL 580G3 580G4 Server Power Supply HSTNS-PA01 406421-001 337867-501
- Model #: 722954735431
- Item #: 9SIVB8UKAA6157
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 48V PE2950 750W Switching Power Supply Z750N-00 ...
- Model #: 744623308814
- Item #: 9SIVB8UKD06384
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ST-460USE/350UAC 1U Industrial Firewall Server Power Supply
- Model #: 792597716791
- Item #: 9SIVRWKKXD6692
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO R8R7 850W Power Supply D850EF-00 D850EF-01 NJVDN ...
- Model #: 744623307244
- Item #: 9SIVB8UKD06365
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 12V97A 1200W PS-2112-5L Server Power Supply
- Model #: 792597705665
- Item #: 9SIVRWKKXD2878
- Return Policy: Nytke team 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.
