Power Supplies - Showing 2113 - 2136 of 17940 Products
Refurbished: HD4830-3 48V 30A Rectifier Module,
- Model #: 753525958164
- Item #: 9SIVSY0KUT4510
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO For FSP 2U 400W Switching Power Supply FSP400-60WS2 ...
- Model #: 744623303802
- Item #: 9SIVB8UKCW6137
- Return Policy: Magicpower Return Policy
Refurbished: For SUN Ultra U25 U45 Workstation Power Supply 300-1800-02 300-1800-03 ...
- Model #: 726727815726
- Item #: 9SIVRWKKXB0447
- Return Policy: Nytke team Return Policy
Refurbished: LDA30F-24 Original Disassembly Industrial Power Supply 24V/1.3A
- Model #: 724780778187
- Item #: 9SIVRTNKX43542
- Return Policy: Jiamayanonly Return Policy
Refurbished: For R2G-6350P Firewall Server Power Supply 350W
- Model #: 703454720462
- Item #: 9SIVB8UKAJ6498
- Return Policy: Magicpower Return Policy
Refurbished: For S3D-2K00V EFRP-SB09 equipment power supply
- Model #: 726727723809
- Item #: 9SIVRWKKXA2335
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ARTESYN 700-013574-000 472917A SP813 15CS10637780 ...
- Model #: 745635673655
- Item #: 9SIVB8UKD64807
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ESR-48/56AC Communication Power Module 48V50A ...
- Model #: 716837094128
- Item #: 9SIVB8UKX62125
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R1T-1120V Power Supply R1T2-5120V0H 120W
- Model #: 792597711277
- Item #: 9SIVRWKKXD4572
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Small 1U 300W Switching Power Supply P1S-5300V P1S-5180V ...
- Model #: 744623300344
- Item #: 9SIVB8UKCU6687
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R210 R220 250W Power Supply N250E-S0 NPS-250NB A 6HTWP ...
- Model #: 726099221521
- Item #: 9SIVB8UKCU6112
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO MATX 250W Power Supply HK350-42SP HK350-41SP hk320-42sp ...
- Model #: 744623301389
- Item #: 9SIVB8UKCV8130
- Return Policy: Magicpower Return Policy
Refurbished: For DCX-8510 Boko PSU2000W 481522-001 23-00000 67 Server Power ...
- Model #: 722954728501
- Item #: 9SIVB8UKAA5422
- Return Policy: Magicpower Return Policy
Refurbished: DPSN-196AB RPSN-196 Service
- Model #: 722954724008
- Item #: 9SIVB8UKAA7023
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Z8G5 workstation power supply D20-1K1P1A M25918-002 ...
- Model #: 716837084709
- Item #: 9SIVB8UKX58073
- Return Policy: Magicpower Return Policy
Refurbished: T2000 450W Power Supply 300-1817/tyco A208300-2110/DS450HE-3-001
- Model #: 722954725364
- Item #: 9SIVB8UKAA7219
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for AD801M53.5-1M17A GERM4815TTE Output 53.5V
- Model #: 792597723430
- Item #: 9SIVRWKKXD8796
- Return Policy: Nytke team Return Policy
Refurbished: D825EF-00 T5600 T5610 Power Supply D825EF-01 DPS-825BB A 0G57YP 825W
- Model #: 724780181383
- Item #: 9SIVB8UKA98784
- Return Policy: Magicpower Return Policy
Refurbished: For 468929-004 508148-001 DPS-850DB A 850W Z800 Workstation Power ...
- Model #: 726099251610
- Item #: 9SIVRWKKXD1481
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 150W Power Supply MPU150-4350
- Model #: 759950243653
- Item #: 9SIVB8UKDA9007
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for HSP1950-S12A 02310UWW Storage Server 1950W Power Supply
- Model #: 716837097563
- Item #: 9SIVB8UKX62983
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1000W Switching Power Supply SSP-1000RS SSP-850RS
- Model #: 744623304045
- Item #: 9SIVB8UKCW6185
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply ST350-SFX FSP350-60GHS 9PA3508707 350W
- Model #: 724780779528
- Item #: 9SIVB8UKAA6746
- Return Policy: Magicpower Return Policy
Refurbished: For RD350 RD450 550W Server Power Supply 00HV224 DPS-550AB-5 A
- Model #: 726727775471
- Item #: 9SIVRWKKXA4378
- 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.
