Power Supplies - Showing 1945 - 1968 of 17940 Products
Refurbished: 1PCS for SA5212 NF5270 5280 M4 M5 550W Server Power Supply PS-2551-5L
- Model #: 792597705207
- Item #: 9SIVRWKKXD2729
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For Server Power S26113-E627-V70-1 S19-500P1A 500W
- Model #: 792597703951
- Item #: 9SIVRWKKXD2444
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power PAC-700WA-L
- Model #: 703454722770
- Item #: 9SIVB8UKAJ6736
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for S7502E S7503E-S switch 300W AC power supply LSQM1AC320 ...
- Model #: 716837088585
- Item #: 9SIVB8UKX60085
- Return Policy: Magicpower Return Policy
Refurbished: For U1A-D10350-DRB 350W 1U Monitoring Server Redundant Power Supply
- Model #: 722954731853
- Item #: 9SIVB8UKAA5778
- Return Policy: Magicpower Return Policy
Refurbished: For B7B64A B7B70A C8S06A C8S08A E7X52A P9L71A RMN-D-01-11
- Model #: 726727816914
- Item #: 9SIVRWKKXB0837
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for ZXD030 S480 communication power supply, switching power supply ...
- Model #: 792597717712
- Item #: 9SIVRWKKXD7019
- Return Policy: Nytke team Return Policy
Refurbished: 1U 80plus Platinum 850W Switching Power Supply FSP850-50FGPH1
- Model #: 753525944273
- Item #: 9SIVB8UKAA5367
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W Switching Power Supply FSP500-40MRB(M) FSP500-40MRB
- Model #: 744623304809
- Item #: 9SIVB8UKCW6250
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For 44-58V 5V 1200W Power Supply CP2725AC54AZ
- Model #: 722954989445
- Item #: 9SIVB8UKAJ5631
- Return Policy: Magicpower Return Policy
Refurbished: Aruba 2930M 3810M 1050W Switching Power Supply JL087A DPS-1050EB A ...
- Model #: 753525944372
- Item #: 9SIVB8UKAA5364
- Return Policy: Magicpower Return Policy
Refurbished: DZ200-7EU For Industrial Medical Equipment Power Supply +12V21A250W
- Model #: 724780779344
- Item #: 9SIVB8UKAA6720
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U DC 48V 200W Switching Power Supply FSP200-61DL
- Model #: 744623298023
- Item #: 9SIVB8UKCU6424
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO H3050 M92P M82 M78 M73 M93 E73 M83 M91 M4550 TFX 14Pin ...
- Model #: 759950240713
- Item #: 9SIVB8UKDA0415
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3710 3910 Power supply 260W HVW4Y H260EBS-00 D260E-005P
- Model #: 792597728404
- Item #: 9SIVB8UKX33139
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AIO K551 K552 K553 K554 K555 150W Switching Power Supply ...
- Model #: 744623305462
- Item #: 9SIVB8UKD01887
- Return Policy: Magicpower Return Policy
Refurbished: EX4330 EX4300 350W JPSU-350-AC-AFO 740-046873 DPS-350AB-22 B
- Model #: 724780183387
- Item #: 9SIVB8UKA98994
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for Industrial equipment power supply ZKS-250A with P8 P9 AT power ...
- Model #: 792597714124
- Item #: 9SIVRWKKXD5578
- Return Policy: Nytke team Return Policy
Refurbished: For Dawn I620-G15 AcBel R2CU6551A 1+1 Redundant Server Power Supply ...
- Model #: 703454719510
- Item #: 9SIVB8UKAJ6401
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For XP24000 SVP Processor Unit HJ-4220-7EWEA 5529201-A 5529201-B ...
- Model #: 716837085324
- Item #: 9SIVB8UKX58451
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For IEI AT P8P9P10 DC48V 300W Switching Power Supply ...
- Model #: 726099222283
- Item #: 9SIVB8UKCU6176
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO HTPC Micro DVR Rated 250W Peak 350W Switching Power Supply ...
- Model #: 744623314815
- Item #: 9SIVB8UKD21867
- Return Policy: Magicpower Return Policy
Refurbished: DS14MK2 RS-PSU-450-AC1N Storage Power Supply 114-00021 64362-04B
- Model #: 722954728389
- Item #: 9SIVB8UKAA5419
- Return Policy: Magicpower Return Policy
Refurbished: ML370G6 Power Backplane 491836-001 467999-001
- Model #: 722954729997
- Item #: 9SIVB8UKAA5576
- 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.
