Power Supplies - Showing 1993 - 2016 of 17946 Products
Refurbished: 1PCS for PS-4241-2HF D12-240P2A PCC004 400 600 800 G1 Small Power ...
- Model #: 792597706105
- Item #: 9SIVRWKKXD2894
- Return Policy: Nytke team Return Policy
Refurbished: Fo PC150B-1
- Model #: 752804576822
- Item #: 9SIVRWKKXB2153
- Return Policy: Nytke team Return Policy
Refurbished: 491836-001 467999-001 DL370 G6 ML370G6 Power
- Model #: 753525948004
- Item #: 9SIVB8UKA99955
- Return Policy: Magicpower Return Policy
Refurbished: TFX 270W Power Supply PST-270DHFB-1
- Model #: 753525935837
- Item #: 9SIVB8UKA99381
- Return Policy: Magicpower Return Policy
Refurbished: For H3C PSR450-12A S6520X/S6800 Switch 450w AC Power Supply
- Model #: 722954732003
- Item #: 9SIVSY0KUT7037
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Power Supply For WANGMA 5V3A 12V8A 24V2A Power Supply WM-2H
- Model #: 703454714706
- Item #: 9SIVB8UKAJ5764
- Return Policy: Magicpower Return Policy
Refurbished: For FLXA5101A Server Power Adapter 100W
- Model #: 752804575412
- Item #: 9SIVRWKKXB2017
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO DL180 DL160 DL80 ML150 G9 900W Power Supply HSTNS-PL48-B ...
- Model #: 744623317151
- Item #: 9SIVB8UKD64503
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS power supply for SMP-920C AT industrial computer power supply
- Model #: 792597715794
- Item #: 9SIVRWKKXD6392
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO NF5270M4 SA5224M4A Power Supply YZCA-00569-102
- Model #: 759950245381
- Item #: 9SIVB8UKDA9284
- Return Policy: Magicpower Return Policy
Refurbished: PBA1500F-24 PBA1500F Series High Power Supply 24V 70A 1500W
- Model #: 724780182823
- Item #: 9SIVB8UKA98922
- Return Policy: Magicpower Return Policy
Refurbished: For 12V Dual Fan Server Computer Power Supply IDE Interface
- Model #: 722954731693
- Item #: 9SIVB8UKAA5763
- Return Policy: Magicpower Return Policy
Refurbished: PSM-15 Communication Power Supply Monitoring Module
- Model #: 722954725333
- Item #: 9SIVT8HKWF2850
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Switching Power Supply S8FS-C35048 For 350W 48V AC100240V
- Model #: 753525992298
- Item #: 9SIVB8UKAA8229
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DPS-800AB-15 A S2F 800w Switching Power Supply
- Model #: 792597712717
- Item #: 9SIVRWKKXD4856
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Standard 1U 700W Switching Power Supply ENH2370-11YGF ...
- Model #: 744623304427
- Item #: 9SIVB8UKCW6240
- Return Policy: Magicpower Return Policy
Refurbished: For CWT PSB250Q-J3 Power Supply 250W PSB250Q-J3
- Model #: 703454719817
- Item #: 9SIVB8UKAJ6424
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M1R-2500G (ROHS) B015190009 500W Redundant Power Supply
- Model #: 792597712274
- Item #: 9SIVRWKKXD4763
- Return Policy: Nytke team Return Policy
Refurbished: For SUN L40 L80 Power Supply ST002A400FSW 107903402 GM400W10CCV ...
- Model #: 722954724763
- Item #: 9SIVB8UKAA7127
- Return Policy: Magicpower Return Policy
Refurbished: X3755M3 69Y4934 69Y5568 PS-2112-2M 1100W Redundant Power Supply
- Model #: 722954730535
- Item #: 9SIVB8UKAA5644
- Return Policy: Magicpower Return Policy
Refurbished: T3500 D525AF-00 DPS-525FB A 0M821J 525W Workstation Power Supply
- Model #: 753525947748
- Item #: 9SIVB8UKA99946
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-1K11P-1R 1010W Server Power Supply 48V
- Model #: 726727724813
- Item #: 9SIVRWKKXA2515
- Return Policy: Nytke team Return Policy
Refurbished: FSP460-631U Industrial Control Medical Equipment Server Power Supply ...
- Model #: 722954722103
- Item #: 9SIVB8UKAA6864
- Return Policy: Magicpower Return Policy
Refurbished: For EMC VNX2 BBU Battery SGB004-710G 078-000-092-07 VNX5400
- Model #: 722954723667
- Item #: 9SIVB8UKAA7029
- 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.
