Power Supplies - Showing 1993 - 2016 of 17981 Products
Refurbished: 1pcs for M25918-002 M47644-001 1450W Z8G5 D20-1K1P1A
- Model #: 792597727001
- Item #: 9SIVB8UKX32589
- Return Policy: Magicpower Return Policy
Refurbished: 1100W Switching Power Supply PSSF112102A 800563-00-07
- Model #: 753525946543
- Item #: 9SIVB8UKA99759
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For 3Y 300W Power Supply YVIC0300AM
- Model #: 744623315256
- Item #: 9SIVB8UKD21937
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Gold 2011 1366 1U 400W Switching Power Supply FS9030
- Model #: 744623317229
- Item #: 9SIVB8UKD64629
- Return Policy: Magicpower Return Policy
Refurbished: MSA20 MSA1500 Disk Array Cabinet Power 349800-001 339596-001 ESP113A
- Model #: 722954735097
- Item #: 9SIVB8UKAA6115
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-750XB A Server Redundant Power Supply 750W E98791-010
- Model #: 731029999470
- Item #: 9SIVRWKKXD1176
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for RG-240R RG-300I switching power supply
- Model #: 792597726332
- Item #: 9SIVRWKKXD9605
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO M310 M410 M415 M510 M610 10Pin 400W Power Supply ...
- Model #: 744623317526
- Item #: 9SIVB8UKD64652
- Return Policy: Magicpower Return Policy
Refurbished: PWS-281-1H 280W ultra-micro 1U server power supply
- Model #: 703454721605
- Item #: 9SIVB8UKAJ6662
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 341-100225-01 750W PWR-C3-750WAC-F
- Model #: 753525988246
- Item #: 9SIVSY0KUS9181
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO 80plus Gold 2011 1366 1U 400W Switching Power Supply FS9030
- Model #: 744623317731
- Item #: 9SIVB8UKD64734
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3020 7020 9020 255W Power Supply L255AS-00 AC255ES-00/01 ...
- Model #: 744623308548
- Item #: 9SIVB8UKD06370
- Return Policy: Magicpower Return Policy
Refurbished: For 6200 6300 D2402A0 PC8027 503376-001 PS-4241-9HA power supply
- Model #: 726727729962
- Item #: 9SIVRWKKXA3165
- Return Policy: Nytke team Return Policy
Refurbished: EPW50-48A Communication Power Supply 1200W
- Model #: 724780182731
- Item #: 9SIVB8UKA98936
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply 54.8V15A AC220V Power Supply KP900HF-60L
- Model #: 722954989735
- Item #: 9SIVB8UKAJ5646
- Return Policy: Magicpower Return Policy
Refurbished: For ThinkStationS20 S30 Workstation Power Supply 41A9758 41A9759 625W ...
- Model #: 752804580003
- Item #: 9SIVRWKKXB2547
- Return Policy: Nytke team Return Policy
Refurbished: GOSPOWER 54.5V6.5A 350W Switching Power Supply G1483-0350WNE
- Model #: 753525936322
- Item #: 9SIVB8UKA99422
- Return Policy: Magicpower Return Policy
Refurbished: For 7908N-R4 (B) DPS-150AB-25 A 150W Power Supply
- Model #: 752804576280
- Item #: 9SIVRWKKXB2073
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for R440 550W Server Power Supply 06V43G D550E-S1 L550E-S1
- Model #: 716837085270
- Item #: 9SIVB8UKX58435
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO B325I 320 520 545 340 8Pin 250W Power Supply APB001 ...
- Model #: 744623299532
- Item #: 9SIVB8UKCU6649
- Return Policy: Magicpower Return Policy
Refurbished: For 390 790 990DT 220 230 620S 3010 Power Supply H250AD-00 L250PS-01
- Model #: 726727732054
- Item #: 9SIVRWKKXA3356
- Return Policy: Nytke team Return Policy
Refurbished: CRPS DVR CVR 300W Power Supply DPS-250AB-81A DPS-250AB-81B ...
- Model #: 753525941982
- Item #: 9SIVB8UKAA5116
- Return Policy: Magicpower Return Policy
Refurbished: LS5M100PWD00 CX7M1PWD DC Power Supply is Applicable to 6720 5300 5700
- Model #: 724780181581
- Item #: 9SIVB8UKA98819
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For R1S-1120V Power Module 120W R1S2-5120V0V
- Model #: 792597703692
- Item #: 9SIVRWKKXD2460
- 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.
