Power Supplies - Showing 1969 - 1992 of 17943 Products
Refurbished: 1Pcs for FSP1200-50FS FSP1200-50FS Cage GPRS 500W 800W 1200W 2U ...
- Model #: 716837091462
- Item #: 9SIVB8UKX61057
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For SKYNET SNP-G165-M 90-250VAC 18VDC 8.8A(0-17A) 160W
- Model #: 753525988420
- Item #: 9SIVB8UKAA8307
- Return Policy: Magicpower Return Policy
Refurbished: L250AD-00 HU250AD D250AD-00 H250AD-00 F250AD-00 DT Medium Power ...
- Model #: 722954988233
- Item #: 9SIVB8UKAA6528
- Return Policy: Magicpower Return Policy
Refurbished: For XPS8940 3891 7080MT Power Supply D500EPM-00 DPS-500AB-49A 5K7J8
- Model #: 726727733754
- Item #: 9SIVRWKKXA4022
- Return Policy: Nytke team Return Policy
Refurbished: DZ200-7EU For Industrial Medical Equipment Power Supply +12V21A250W
- Model #: 724780779344
- Item #: 9SIVB8UKAA6720
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZXD050 D240 Communication Power Module
- Model #: 792597720057
- Item #: 9SIVRWKKXD7673
- Return Policy: Nytke team Return Policy
Refurbished: For P6 570 regulator module API4VR19 44V2965 44V5074 42R8325
- Model #: 726727776645
- Item #: 9SIVRWKKXB0123
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO D19-500P1A 500W power supply D500E004P m6660g Nitro ...
- Model #: 745635674232
- Item #: 9SIVB8UKDA0157
- Return Policy: Magicpower Return Policy
Refurbished: For SZ-3500U 350w server power supply industrial computer 1U power supply
- Model #: 752804578055
- Item #: 9SIVRWKKXB2247
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for Vostro3090 3888 3880 Small Chassis Power Supply AC/L/H260EBM-01 ...
- Model #: 792597982974
- Item #: 9SIVB8UKX56772
- Return Policy: Magicpower Return Policy
Refurbished: PWS-920P-SQ 920W Server Power Module
- Model #: 722954737435
- Item #: 9SIVB8UKAA6370
- Return Policy: Magicpower Return Policy
Refurbished: TSI-EPC-48V-230VAC-10 072687 For Enatel 48VDC To 230VAC/525W/750VA ...
- Model #: 753525947991
- Item #: 9SIVB8UKA99951
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FLEX POS Small 1U 200W Switching Power Supply GPS-200DB A ...
- Model #: 744623306629
- Item #: 9SIVB8UKD06261
- Return Policy: Magicpower Return Policy
Refurbished: 1U DPS-220BB C Universal GW-FLX220A Founder E200 All-in-One Power ...
- Model #: 722954988080
- Item #: 9SIVB8UKAA6518
- Return Policy: Magicpower Return Policy
Refurbished: Pws-1K63s-1R Server Power Supply 1620W 220V 1U
- Model #: 722954724459
- Item #: 9SIVB8UKAA7103
- Return Policy: Magicpower Return Policy
Refurbished: For Network Power DS1200-3-002 1200W Power Supply
- Model #: 726727774542
- Item #: 9SIVRWKKXA4025
- Return Policy: Nytke team Return Policy
Refurbished: PE1900 PowerEdge 1900 Power Supply Z800P-00 ND444 7001209-Y000
- Model #: 722954734724
- Item #: 9SIVB8UKAA6081
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 180W Power Supply API6PC06 HK280-22GP HK280-21AP ...
- Model #: 744623300863
- Item #: 9SIVB8UKCU6796
- Return Policy: Magicpower Return Policy
Refurbished: 1100W Switching Power Supply PSG-2B07V
- Model #: 753525945812
- Item #: 9SIVB8UKA99662
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO WS-C4948E-F DC 300W Power Supply PWR-C49-300DC-F ...
- Model #: 759950245978
- Item #: 9SIVB8UKDA9370
- Return Policy: Magicpower Return Policy
Refurbished: For FSD056 Server 650W Power Supply 4Z2G
- Model #: 752804578581
- Item #: 9SIVRWKKXB2311
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DPS-500AB-22 C Small 1U500W Power Supply
- Model #: 792597706860
- Item #: 9SIVRWKKXD3242
- Return Policy: Nytke team Return Policy
Refurbished: LDA150W-5 Original Disassembly Switching Power Supply 5V/30A 150W
- Model #: 753525984910
- Item #: 9SIVRTNKX43555
- Return Policy: Jiamayanonly Return Policy
Refurbished: IDP 800 PWS-401-1R 400W Device Power Supply
- Model #: 722954730276
- Item #: 9SIVSY0KUT7908
- Return Policy: LiAnMengYuShangDian 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.
