Power Supplies - Showing 2377 - 2400 of 18352 Products
Refurbished: 1Pcs for 3080 5080 7080 XE3 3890 3690 3881 Power supply 500W H500EPM-00
- Model #: 716837089131
- Item #: 9SIVB8UKX60302
- Return Policy: Magicpower Return Policy
Refurbished: 8 serial port SFXA5201B hard disk recorder power supply DS-8632N-E8/K8 host
- Model #: 703454717431
- Item #: 9SIVB8UKAJ6147
- Return Policy: Magicpower Return Policy
Refurbished: For Murata D1U5CS-H-2825-12-HA4C PWR Supply AC/DC
- Model #: 703454718605
- Item #: 9SIVB8UKAJ6328
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for VP500P NE550C BP500U computer case, power supply 450W 550W
- Model #: 792597716470
- Item #: 9SIVRWKKXD6556
- Return Policy: Nytke team Return Policy
Refurbished: For P12954-001 P49169-001 MSA2060 584W power supply
- Model #: 726727821420
- Item #: 9SIVRWKKXB1524
- Return Policy: Nytke team Return Policy
Refurbished: SS-300TFX Cashier Case TFX Small Power 300W
- Model #: 722954727412
- Item #: 9SIVB8UKAA7399
- Return Policy: Magicpower Return Policy
Refurbished: COMPACK 242100.400 Power Monitoring Module
- Model #: 753525984873
- Item #: 9SIVB8UKAA9145
- Return Policy: Magicpower Return Policy
Refurbished: YM-2821A 820W Original For Server Redundant Power Supply Module
- Model #: 753525932515
- Item #: 9SIVB8UKA99048
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S7-2L X7-2 X8-2 AWF-2DC-1200W-T 7358600 R1CA2202A power ...
- Model #: 792597710980
- Item #: 9SIVRWKKXD4295
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs For GW-CRPSHD1300D2 FRU 02JG065 SP57A14659 Server power supply ...
- Model #: 731029999326
- Item #: 9SIVRWKKXD1130
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for R520 server power supply EFRP-553 530W
- Model #: 792597710102
- Item #: 9SIVRWKKXD4132
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Z2 800 880 G4 G5 G6 4Pin 550W Power Supply PA-5551-1HA ...
- Model #: 744623301334
- Item #: 9SIVB8UKCV8111
- Return Policy: Magicpower Return Policy
Refurbished: T310 Server Power Supply A400EF-S0 D400EF-S0 R101K N884K 400W
- Model #: 722954734175
- Item #: 9SIVB8UKAA6005
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for P720 server power supply 12V130A 1725W 00E7187 7001490-J000
- Model #: 792597706136
- Item #: 9SIVRWKKXD2933
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs For R7525 R7625 R760 R770 T660 2800W Server Power Supply 12V Output
- Model #: 726099253508
- Item #: 9SIVRWKKXD1939
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for GW-CRPS550/N/N2 550W server power supply
- Model #: 792597716845
- Item #: 9SIVRWKKXD6714
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO CP E SNT 100W 15V 6.6A 100W 7760052199
- Model #: 759950240065
- Item #: 9SIVB8UKDA0350
- Return Policy: Magicpower Return Policy
Refurbished: LFA150F-24-J1 Original Disassembly Switching Power Supply 24V/6.3A
- Model #: 753525956993
- Item #: 9SIVB8UKAA8892
- Return Policy: Magicpower Return Policy
Refurbished: For FSP Grout 500W 1U Power Supply 150mm*81.5mm*40.5mm ...
- Model #: 753525933192
- Item #: 9SIVB8UKA99121
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R48-3000e3 48V 50A Switching Power Supply 3000W
- Model #: 716837094647
- Item #: 9SIVB8UKX62256
- Return Policy: Magicpower Return Policy
Refurbished: For GW-CDM200SDA-TF 12-Pin 200W 10th Generation Host Power Supply
- Model #: 722954721663
- Item #: 9SIVB8UKAA6831
- Return Policy: Magicpower Return Policy
Refurbished: S7502 S6502 Switch Power Supply PSR300-A AC PSR300-D DC
- Model #: 722954721632
- Item #: 9SIVB8UKAA6819
- Return Policy: Magicpower Return Policy
Refurbished: GX100 GX110 GX200 MT Large Power Supply NPS-200PB-73 PS-5201-7D
- Model #: 722954722578
- Item #: 9SIVB8UKAA6901
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for X5726A DCJ9133-01 114-00148 + C0 913W Switching Power Supply
- Model #: 716837097990
- Item #: 9SIVB8UKX63008
- 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.
