Power Supplies - Showing 1897 - 1920 of 17943 Products
Refurbished: RG-PA800I-F RG-S6510 800W Switching Power Supply CSU800AP-3-300
- Model #: 753525946727
- Item #: 9SIVB8UKA99733
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-865-PQ 865W Dual 8PIN
- Model #: 726727724561
- Item #: 9SIVRWKKXA2605
- Return Policy: Nytke team Return Policy
Refurbished: For EFRP-465 460W Disk Array, Storage Redundant Power Supply 1pcs
- Model #: 726727731279
- Item #: 9SIVRWKKXA3366
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO S8500 DC 1200W Power Supply NEPS1200-D
- Model #: 759950244858
- Item #: 9SIVB8UKDA9203
- Return Policy: Magicpower Return Policy
Refurbished: 750W Power Supply 700-013700-0000 700-013700-0200 00YL564 00YL565
- Model #: 724780183196
- Item #: 9SIVB8UKA98973
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 13.8V60A PS-2751-7H 750W Vehicle Communication Power Supply
- Model #: 726099251719
- Item #: 9SIVRWKKXD1486
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For ENHANCE AT P8P9 250W Power Supply V525
- Model #: 759950245749
- Item #: 9SIVB8UKDA9333
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U -5V 400W Switching Power Supply P1H-6400P FSP400-601U ...
- Model #: 744623306391
- Item #: 9SIVB8UKD01982
- Return Policy: Magicpower Return Policy
Refurbished: LEA75F-12 Original Disassembly Switching Power Supply 12V/6.3A
- Model #: 753525985146
- Item #: 9SIVB8UKAA9153
- Return Policy: Magicpower Return Policy
Refurbished: CE6800 5700 350W Switching Power Supply PAC-350WA-F
- Model #: 753525941227
- Item #: 9SIVB8UKAA4966
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PS-2461-7H 12V38A 460W server power supply
- Model #: 726099251672
- Item #: 9SIVRWKKXD1522
- Return Policy: Nytke team Return Policy
Refurbished: For H6Z26A E7Y71A 756484-001 3PAR 8000 2.5 inch
- Model #: 726727820935
- Item #: 9SIVRWKKXB1558
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for YH-5301K YH5301-XKAR Power Cage YM-2301K YM-2301KAR
- Model #: 792597709922
- Item #: 9SIVRWKKXD4138
- Return Policy: Nytke team Return Policy
Refurbished: For DCX-8510 Boko PSU2000W 481522-001 23-00000 67 Server Power ...
- Model #: 722954727108
- Item #: 9SIVB8UKAA7377
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for UPSByoModu00 02310MPC function module -200kVA -3U-UPS5000
- Model #: 792597718641
- Item #: 9SIVRWKKXD7318
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for EVL250-AADF relay 12V-24VDC-250A automotive contactor
- Model #: 792597717279
- Item #: 9SIVRWKKXD6871
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 3669 3080 3890 5080 3690 3881 3060 3880 MT Desktop Power Supply ...
- Model #: 792597982288
- Item #: 9SIVB8UKX56681
- Return Policy: Magicpower Return Policy
Refurbished: Server Power Supply EVA6400 EVA8400 339596-601 489883-001 ...
- Model #: 753525957907
- Item #: 9SIVB8UKAA9008
- Return Policy: Magicpower Return Policy
Refurbished: AA24870L switch power module 2000W high-power 52V38.5A
- Model #: 703454721957
- Item #: 9SIVB8UKAJ6658
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AC220V 280W Switching Power Supply AT350-24V-48B
- Model #: 744623310862
- Item #: 9SIVB8UKD12114
- Return Policy: Magicpower Return Policy
Refurbished: EPW50-48A Communication Power Supply Agility EPW50-48A
- Model #: 722954733499
- Item #: 9SIVB8UKAA5934
- Return Policy: Magicpower Return Policy
Refurbished: For EDPS-645AB A 740-024283 SRX650 Router Power Supply
- Model #: 792597712892
- Item #: 9SIVRWKKXD4842
- Return Policy: Nytke team Return Policy
Refurbished: 7932N Hard Disk Recorder NVR Power Supply DPS-80PB-10A DPS-200PB-176
- Model #: 722954725432
- Item #: 9SIVB8UKAA7196
- Return Policy: Magicpower Return Policy
Refurbished: DL580 HSTNS-PL11 490594-001 438203-001 12V 100A1200W
- Model #: 703454720691
- Item #: 9SIVB8UKAJ6531
- 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.
