Power Supplies - Showing 2017 - 2040 of 17947 Products
Refurbished: 1PCS For 43W4401 43W4404 46C9276 46C9274
- Model #: 716837095880
- Item #: 9SIVB8UKX62593
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PA-1181-10AC power supply 180 watts [6 pins + 4 pins]
- Model #: 792597708284
- Item #: 9SIVRWKKXD3802
- Return Policy: Nytke team Return Policy
Refurbished: PS-5221-09/6/8 PE-5221-08 220WITX Small Case
- Model #: 722954988004
- Item #: 9SIVB8UKAA6533
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO OptiPlex XE 486 745 755 280W Power Supply L280E-01 KD98N ...
- Model #: 744623308753
- Item #: 9SIVB8UKD06405
- Return Policy: Magicpower Return Policy
Refurbished: For Vapel Power Supply For DAR400-4812A
- Model #: 753525992052
- Item #: 9SIVB8UKAA8213
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for T630 T640 R740/XD R640 T640 1100W 1600W Power Supply 95HR5 ...
- Model #: 792597983681
- Item #: 9SIVB8UKX56998
- Return Policy: Magicpower Return Policy
Refurbished: For EFRP-G757 750W Server Power Supply
- Model #: 726727776959
- Item #: 9SIVRWKKXB0226
- Return Policy: Nytke team Return Policy
Refurbished: 1950W Switching Power Supply HSP1950-S12A
- Model #: 753525941920
- Item #: 9SIVB8UKAA5092
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 800W Switching Power Supply LL1U800APFC
- Model #: 744623311777
- Item #: 9SIVB8UKD19662
- Return Policy: Magicpower Return Policy
Refurbished: 12V0.85A -12V0.15A Power Supply DLN-8F51
- Model #: 703454715802
- Item #: 9SIVB8UKAJ5942
- 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 PAC3000S12-BH 3000W Server Power Supply 12V 240A
- Model #: 792597720255
- Item #: 9SIVRWKKXD7668
- Return Policy: Nytke team Return Policy
Refurbished: R400-15000e Switching Power Supply 384V 40A 15KW
- Model #: 753525932591
- Item #: 9SIVB8UKA99080
- Return Policy: Magicpower Return Policy
Refurbished: For HK650-15PP SP50H29609 5P50V03188 Workstation Power Supply
- Model #: 752804579410
- Item #: 9SIVRWKKXB2451
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 460W 3001588-01 300-1588 AA22960 X7414A V250 Power Supply
- Model #: 716837085591
- Item #: 9SIVB8UKX58629
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M310 510PA-2181-2 HK280-72PP HK280-73PP180W
- Model #: 716837089292
- Item #: 9SIVB8UKX60320
- Return Policy: Magicpower Return Policy
Refurbished: FH-XD301MYR-1 300W Desktop Computer Power Supply
- Model #: 722954732522
- Item #: 9SIVSYTKUU8381
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1PCS for IPC power supply NPS-400AB B S26113-E503-V5
- Model #: 792597713721
- Item #: 9SIVRWKKXD5580
- Return Policy: Nytke team Return Policy
Refurbished: For HWS1500-24-36 Imported Power Supply TDK-LAMBDA Landa 1500W 24V ...
- Model #: 722954737305
- Item #: 9SIVB8UKAA6323
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 3000MT Power Supply 260W 8 + 4 + 4 Interface AC260EBS-00 PCL009 ...
- Model #: 792597707737
- Item #: 9SIVRWKKXD3698
- Return Policy: Nytke team Return Policy
Refurbished: For H3C LSQM1DC650 PSR650-D 650W DC Power Supply SR6604 6608 S750
- Model #: 722954726644
- Item #: 9SIVSY0KUV4196
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: FSP3501U SPI350U4B FSP3501UR-JNP3 For JUNIPER SSG520M 350W 1U ...
- Model #: 753525950038
- Item #: 9SIVB8UKAA0191
- Return Policy: Magicpower Return Policy
Refurbished: For 689254-001 SL4500 4.3U 684291-001/013479-001
- Model #: 726727776232
- Item #: 9SIVRWKKXA7160
- 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
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.
