Power Supplies - Showing 2233 - 2256 of 17979 Products
Refurbished: Power Supply 341-0401-03 3000W PWR-3KW-AC-V2
- Model #: 724780778293
- Item #: 9SIVSY0KUT7095
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for SFXA5201B/C host power supply SFXA5061B-09AT 10-pin
- Model #: 716837096474
- Item #: 9SIVB8UKX62735
- 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: P20 S22 220W Switching Power Supply S22PSU
- Model #: 753525935028
- Item #: 9SIVB8UKA99311
- Return Policy: Magicpower Return Policy
Refurbished: For S6502 S6502XG 7502 switch LS8M5220PWR PSR300-A power supply
- Model #: 726727774757
- Item #: 9SIVRWKKXA4362
- Return Policy: Nytke team Return Policy
Refurbished: DL380G2 DL380G3 400W Switching Power Supply PS-3381-1C 228509-001 ...
- Model #: 722954986994
- Item #: 9SIVB8UKAA6424
- 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: Server Power Supply MKP120 5V 24A
- Model #: 753525934069
- Item #: 9SIVB8UKA99223
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 757.6W YGEAO758AM YGEA0758AM-6R01S10 industrial power supply
- Model #: 716837086086
- Item #: 9SIVB8UKX58944
- Return Policy: Magicpower Return Policy
Refurbished: For ir358 608 i1345 3550 HK280-86FP FSP180-50PLV/NPL PC9028/9029
- Model #: 726727733860
- Item #: 9SIVRWKKXA3869
- Return Policy: Nytke team Return Policy
Refurbished: CRPS 60W Switching Power Supply RG1X-1060V
- Model #: 753525936551
- Item #: 9SIVB8UKA99505
- Return Policy: Magicpower Return Policy
Refurbished: For GPAD201M4.2-1E 4.2V40A Power Module
- Model #: 752804576655
- Item #: 9SIVRWKKXB2119
- Return Policy: Nytke team Return Policy
Refurbished: R3G-6650P GIN-6350P Redundant Power Supply 650W 3U
- Model #: 753525932645
- Item #: 9SIVB8UKA99050
- Return Policy: Magicpower Return Policy
Refurbished: For X3100 M5 Workstation Power Supply 00AL204 00MW244 DPS-430EB A ...
- Model #: 726727815528
- Item #: 9SIVRWKKXB0448
- Return Policy: Nytke team Return Policy
Refurbished: New Power Supply 5V60A 300W Power Supply CLW300-5-L
- Model #: 722954989193
- Item #: 9SIVB8UKAJ5565
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R515 R525 770W Switching Power Supply DPS-770AB B
- Model #: 744623308128
- Item #: 9SIVB8UKD06296
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S10-500P1A 500W 1U Industrial Control Server Power Supply ...
- Model #: 792597715435
- Item #: 9SIVRWKKXD6230
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For FSP AT 7Pin 180W Switching Power Supply FSP180-50PLA
- Model #: 744623301235
- Item #: 9SIVB8UKCV8117
- Return Policy: Magicpower Return Policy
Refurbished: FSP AIO MATX SFX 350W Switching Power Supply FSP350-50SHNCB
- Model #: 753525935929
- Item #: 9SIVB8UKA99410
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U Rated 220W Peak 300W Switching Power Supply ...
- Model #: 744623302010
- Item #: 9SIVB8UKCV8232
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for M410 M415 M437 M428 M425 M433 Small Chassis 500W Power Supply
- Model #: 792597728053
- Item #: 9SIVB8UKX32972
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R4850G1 Communication Power Supply 48V50A 3000W
- Model #: 716837093930
- Item #: 9SIVB8UKX61947
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2700W Power Supply RG-PA2700I
- Model #: 759950247125
- Item #: 9SIVB8UKDF9371
- Return Policy: Magicpower Return Policy
Refurbished: PSU For MICR NICS CYCLONE III 500W Switching Power Supply YC-500D12S
- Model #: 753525936025
- Item #: 9SIVB8UKA99447
- 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.
