Power Supplies - Showing 1897 - 1920 of 17942 Products
Refurbished: 1PCS for SDX-300-24 KBA printing machine host computer power supply
- Model #: 792597715893
- Item #: 9SIVRWKKXD6413
- Return Policy: Nytke team Return Policy
Refurbished: SNP-R230 230W Industrial Control Equipment Power Supply
- Model #: 753525948554
- Item #: 9SIVB8UKAA0020
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for CPB09-043A 800W R920 M720 Medical Power Supply ...
- Model #: 716837085027
- Item #: 9SIVB8UKX58444
- Return Policy: Magicpower Return Policy
Refurbished: R525 G2 Server Power Backplane AC-075 D Delta DPS-750PB A
- Model #: 703454719749
- Item #: 9SIVB8UKAJ6441
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for U1A-D10550-DRB-H Server Power Supply 550W
- Model #: 792597724901
- Item #: 9SIVRWKKXD9242
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 650W Switching Power Supply DPS-650QB A
- Model #: 744623313283
- Item #: 9SIVB8UKD21703
- Return Policy: Magicpower Return Policy
Refurbished: IPC Power Supply A5E30947477-H3
- Model #: 753525948066
- Item #: 9SIVSY0KUV0972
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO DC 800W Switching Power Supply DGIN-3800V
- Model #: 744623298054
- Item #: 9SIVB8UKCU6391
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO T168 T468 T280 350W Switching Power Supply DPS-350TB D ...
- Model #: 744623314082
- Item #: 9SIVB8UKD21810
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y YM-2721A YH-5721A Rated 720W Server Redundant Power Supply
- Model #: 722954730214
- Item #: 9SIVB8UKAA5617
- Return Policy: Magicpower Return Policy
Refurbished: 80plus Gold Power Supply For Silent Module Of Server E-game 2000W Power ...
- Model #: 753525935974
- Item #: 9SIVB8UKA99431
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-300AB 24 industrial computer power supply
- Model #: 716837092650
- Item #: 9SIVB8UKX61533
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply NETAPP FAS6080 1064W Power Supply 856-851130-001 ...
- Model #: 703454714867
- Item #: 9SIVB8UKAJ5789
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Platinum 800W Switching Power Supply GPS-850HB C
- Model #: 744623303727
- Item #: 9SIVB8UKCW6102
- Return Policy: Magicpower Return Policy
Refurbished: 280W 54Y8804 For Kangshu PC7001 Computer Power 54Y8806
- Model #: 722954731709
- Item #: 9SIVB8UKAA5767
- Return Policy: Magicpower Return Policy
Refurbished: 450W Power Supply 450A-SAI1 450A-SAII 450A-SA11
- Model #: 703454715765
- Item #: 9SIVB8UKAJ5934
- Return Policy: Magicpower Return Policy
Refurbished: For LTP-200W-4.6V/40A Screen Power Supply
- Model #: 722954732676
- Item #: 9SIVB8UKAA5858
- Return Policy: Magicpower Return Policy
Refurbished: T100 T400 G6 Server Power Supply DPS-300GB-1H DPS-300GB-1N
- Model #: 722954724800
- Item #: 9SIVB8UKAA7143
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FG-5020/50PS Power Supply TPCM7000 001-4061-0007
- Model #: 792597985685
- Item #: 9SIVB8UKX57404
- Return Policy: Magicpower Return Policy
Refurbished: For 450W Z2 G5 G8 Desktop PA-3451-1HA Power Supply DPS-450AB-23A
- Model #: 752804578710
- Item #: 9SIVRWKKXB2404
- Return Policy: Nytke team Return Policy
Refurbished: 400W Switching Power Supply BEA-640
- Model #: 753525944488
- Item #: 9SIVB8UKAA5398
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 5050 7080 3080 3881 3991 6Pin 260W Power Supply L260AM-00 ...
- Model #: 744623312774
- Item #: 9SIVB8UKD19602
- Return Policy: Magicpower Return Policy
Refurbished: For xps8920 8930 DVD 9M9FK GU90N
- Model #: 752804580584
- Item #: 9SIVRWKKXB2598
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for ZXD2400 0-60V0-50A/0-120V0-25A
- Model #: 716837095187
- Item #: 9SIVB8UKX62444
- 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.
