Power Supplies - Showing 2185 - 2208 of 17945 Products
Refurbished: PCB230 D13-300P1A Desktop 300W Power Supply 490 285 G2 G3 G4 570 Series
- Model #: 722954721779
- Item #: 9SIVB8UKAA6826
- Return Policy: Magicpower Return Policy
Refurbished: For 1U power supply GW-1U450 450W
- Model #: 752804578765
- Item #: 9SIVRWKKXB2412
- Return Policy: Nytke team Return Policy
Refurbished: CRPS 400W Switching Power Supply M1S-3400V
- Model #: 722954986963
- Item #: 9SIVB8UKAA6414
- Return Policy: Magicpower Return Policy
Refurbished: X3550 670W server power supply 7001134-Y000 39Y7188 39Y7189
- Model #: 703454721407
- Item #: 9SIVB8UKAJ6568
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 7932N Small Power Supply DPS-300AB-81B DPS-300AB-101
- Model #: 792597707157
- Item #: 9SIVRWKKXD3577
- Return Policy: Nytke team Return Policy
Refurbished: SMU02B Monitoring Module Communication Power SMU02B1
- Model #: 724780181352
- Item #: 9SIVT8HKWF3041
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: ML370G3/G2 Server Power PS-5551-2 216068-002 230993-001
- Model #: 722954734861
- Item #: 9SIVB8UKAA6076
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-741P-1R 740W Server, Power Supply
- Model #: 726727817287
- Item #: 9SIVRWKKXB0997
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for power supply LMAD510M53-1C1 510W AC switching power supply ...
- Model #: 792597721436
- Item #: 9SIVRWKKXD8177
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for Z4 G4 Power Supply 1000W D15-1K0P1A 851383-001
- Model #: 716837093275
- Item #: 9SIVB8UKX61691
- Return Policy: Magicpower Return Policy
Refurbished: 30W HWS30A-12/A Switching Power Supply Input 85-264VAC Output 12VDC
- Model #: 724780182540
- Item #: 9SIVSY0KUS0343
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: POWER SUPPLY For MEC048-H42C0 MEC048-H42C0-A0 Tested Fast
- Model #: 753525991253
- Item #: 9SIVSY0KUT4503
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 73-553-0005 For ASTEC Industrial Medical Equipment Power Supply 20V 2.7A
- Model #: 753525934205
- Item #: 9SIVB8UKA99230
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Power Supply MSP300-5.0 MCP300WM-4.5
- Model #: 759950239939
- Item #: 9SIVB8UKDA0348
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ML110G9 FSE011 791706-001 776937-601 Server Power Supply ...
- Model #: 792597724574
- Item #: 9SIVRWKKXD9075
- Return Policy: Nytke team Return Policy
Refurbished: Dell PowerEdge R310 350W Non-Redundant Power Supply 0R109K R109K
- Model #: R109K, 0R109K, CN-0R109K
- Item #: 9SIVG1JK7Z2488
- Return Policy: Fastparts Return Policy
Refurbished: For ElanVital EVM-5004-10 500W Disk Array Power Supply
- Model #: 722954724978
- Item #: 9SIVB8UKAA7164
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M70AD HBD002 DPS-200PB-193 A Power Supply 200W
- Model #: 716837096627
- Item #: 9SIVB8UKX62848
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 2U server FSP700-802UQ industrial computer power supply ...
- Model #: 792597713585
- Item #: 9SIVRWKKXD4944
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 3020 7020 9020 255W Power Supply L255AS-00 AC255ES-00/01 ...
- Model #: 744623308180
- Item #: 9SIVB8UKD06271
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for RG-PD600I switch 600W DC power module
- Model #: 792597723638
- Item #: 9SIVRWKKXD8788
- Return Policy: Nytke team Return Policy
Refurbished: For P340 K M930T Power Supply HK600-11PP PCK010 SP50H29598 ...
- Model #: 726727732641
- Item #: 9SIVRWKKXA3547
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 7050 3040 6Pin 180W Power Supply TDFTP 0TDFTP H180ES-00
- Model #: 759950248764
- Item #: 9SIVB8UKDF9531
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply R-ROSOR 1U 400W Power Supply SO-3400U S0-3400U
- Model #: 722954989629
- Item #: 9SIVB8UKAJ5644
- 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.
