Power Supplies - Showing 2113 - 2136 of 17934 Products
Refurbished: 1PCS for 500W P8P9 industrial computer power supply
- Model #: 792597705030
- Item #: 9SIVRWKKXD2632
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For uMP4T-S2D-S2D-20-B-428 uMP4T-S2D-S2D-20 -B-428
- Model #: 753525991000
- Item #: 9SIVB8UKAA8031
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 078-000-085 078-000-084 078-000-064 1200W SPS
- Model #: 716837083368
- Item #: 9SIVB8UKX57596
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 48V50A 1U 3000W Switching Power Supply R4850G2 R4850G6 ...
- Model #: 744623308388
- Item #: 9SIVB8UKD06303
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2U 550W Switching Power Supply ST-550UAC-05G
- Model #: 744623311159
- Item #: 9SIVB8UKD12190
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DS 4100B Power Supply 60-0200849-02 100-652-029 DPSN-210BB ...
- Model #: 726099252266
- Item #: 9SIVRWKKXD1620
- Return Policy: Nytke team Return Policy
Refurbished: For SUN Fire V100 Server Power Supply V100 DPSN-80AB A 370-4363-01
- Model #: 722954725579
- Item #: 9SIVB8UKAA7206
- Return Policy: Magicpower Return Policy
Refurbished: For T5610 685W workstation power supply D685EF-00 F685EF-00 YP00X ...
- Model #: 752804575061
- Item #: 9SIVRWKKXB1919
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 4.2V55A 231W DPS-231CB A
- Model #: 759950247477
- Item #: 9SIVB8UKDF9412
- Return Policy: Magicpower Return Policy
Refurbished: HD4825-3 Communication Power Supply 48V/25A
- Type: ATX
- Model #: 703454923771
- Item #: 9SIVSY0KUT5095
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs Power Adapter for Mavic Pro F1C50 50W
- Model #: 716837091417
- Item #: 9SIVB8UKX61031
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for chassis power supply GW-T200SPWC-TF GW-TFX200AHD
- Model #: 716837089629
- Item #: 9SIVB8UKX60468
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3292486-A VSP 5500H DKC910I-CBX battery
- Model #: 792597722556
- Item #: 9SIVRWKKXD8467
- Return Policy: Nytke team Return Policy
Refurbished: S5300V3 5500V3 960W Power Supply HSP960-D1205A 02310TBR EN3MCACB
- Model #: 722954736407
- Item #: 9SIVB8UKAA6251
- Return Policy: Magicpower Return Policy
Refurbished: For 45E1413 46X7042 TS3100 Power Supply 90W STSTEM Storage
- Model #: 722954723261
- Item #: 9SIVB8UKAA6973
- Return Policy: Magicpower Return Policy
Refurbished: For FLEX Small 1U Power Supply F-3000L F-3200L LWP-F315 LWP320 LWP330
- Model #: 726727732665
- Item #: 9SIVRWKKXA3516
- Return Policy: Nytke team Return Policy
Refurbished: For 390 790 990SFF Small Chassis Power Supply H240AS-00 3WN11 L240AS-00 ...
- Model #: 726727729788
- Item #: 9SIVRWKKXA3195
- Return Policy: Nytke team Return Policy
Refurbished: For HK451-11UEP FSP400-80AAB ST-250UAG-05E BEA-560H Industrial ...
- Model #: 722954736155
- Item #: 9SIVB8UKAA6203
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AD301M12-1M1 Power Module
- Model #: 716837090625
- Item #: 9SIVB8UKX60834
- Return Policy: Magicpower Return Policy
Refurbished: For RSAF 600S24 Switching Power Supply
- Model #: 752804578857
- Item #: 9SIVRWKKXB2314
- Return Policy: Nytke team Return Policy
Refurbished: DC 1000W Power Supply PWR-C49M-1000DC 341-0294-02
- Model #: 703454716502
- Item #: 9SIVB8UKAJ6051
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PS-5221-8AB power supply 250W
- Model #: 792597728428
- Item #: 9SIVB8UKX33147
- Return Policy: Magicpower Return Policy
Refurbished: R430 D550E-S1 0X185V X185V 550W EPP
- Model #: 753525957495
- Item #: 9SIVB8UKAA8945
- Return Policy: Magicpower Return Policy
Refurbished: Force10 Power Supply 759-00041-01 62N0T SA-01-PSU 062N0T
- Model #: 703454715369
- Item #: 9SIVB8UKAJ5917
- 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.
