Power Supplies - Showing 1897 - 1920 of 17993 Products
Refurbished: KHACHIMO PSU For TURBO-COOL EDGE -5V 1U 300W Power Supply ...
- Model #: 726099221385
- Item #: 9SIVSY0KUT5118
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for RG-PA2700I Power Supply 2700W 54V test well
- Model #: 792597714728
- Item #: 9SIVRWKKXD6099
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for Z4 G4 Power Supply 1000W D15-1K0P1A 851383-001
- Model #: 716837093275
- Item #: 9SIVB8UKX61691
- Return Policy: Magicpower Return Policy
Refurbished: For HK300-41DP Power Supply MATX2004 MATX-2000 MATX-2403 ...
- Model #: 726727733679
- Item #: 9SIVRWKKXA3852
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP350-60PFG industrial computer power supply FSP300-60PGLC ...
- Model #: 792597707331
- Item #: 9SIVRWKKXD3591
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R1IA2651A 650W server power supply
- Model #: 716837091493
- Item #: 9SIVB8UKX61067
- Return Policy: Magicpower Return Policy
Refurbished: M221S Embedded Cabinet Power Supply System Communication Monitoring ...
- Model #: 722954737602
- Item #: 9SIVT8HKWF2612
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: C7000 Power Supply 732605-301 733459-B21 732604-001 733830-001
- Model #: 722954736742
- Item #: 9SIVB8UKAA6291
- Return Policy: Magicpower Return Policy
Refurbished: ASR9000 Series Switches 341-0518-01 250W ASR-920-PWR-D
- Model #: 753525957228
- Item #: 9SIVB8UKAA8979
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply SUPLET Power Supply 782145070 XPLAF15SB
- Model #: 722954989322
- Item #: 9SIVB8UKAJ5571
- Return Policy: Magicpower Return Policy
Refurbished: For R520G7 RH2285 PS-2751-2F-LF 750W Server Power Supply
- Model #: 703454720370
- Item #: 9SIVB8UKAJ6496
- Return Policy: Magicpower Return Policy
Refurbished: 6266 97P3867 97P5101 P615 Minicomputer Power 7000731-0000 700W
- Model #: 722954734410
- Item #: 9SIVB8UKAA6053
- Return Policy: Magicpower Return Policy
Refurbished: C3K-PWR-1150WAC C3750E-48PD 3560-48PD-SF EF switch power supply
- Model #: 703454721889
- Item #: 9SIVB8UKAJ6625
- Return Policy: Magicpower Return Policy
Refurbished: HSTNS-PL29-AD 746072-001 742516 739254-B21 Power Supply 750W
- Model #: 722954729508
- Item #: 9SIVB8UKAA5530
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 14 pin 625W P410 P520C power supply FSP625-50ETN 5P51D76970
- Model #: 716837092094
- Item #: 9SIVB8UKX61381
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For HDS HUS110 130 150 Power Supply 5552748-A ...
- Model #: 759950242601
- Item #: 9SIVB8UKDA8857
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for OMR200-48A AC power supply
- Model #: 792597720347
- Item #: 9SIVRWKKXD7834
- Return Policy: Nytke team Return Policy
Refurbished: JPSU-150-AC-AFO DPS-150AB-10 A EX3400 150W AC Power Supply
- Model #: 753525955101
- Item #: 9SIVB8UKAA0264
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Optiplex 790 990 3010 7010 9010 240W Power Supply AC240ES-01 ...
- Model #: 745635675000
- Item #: 9SIVB8UKDA0195
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply for N2power XL125-12CS XL125-3 +12V 10.5A
- Model #: 724780777791
- Item #: 9SIVB8UKAA7576
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module HRS850-9000C F
- Type: ATX
- Model #: 703454739891
- Item #: 9SIVSY0KUT2618
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For XW8400 Power Supply DPS-825AB B 405351-003 408947-001
- Model #: 726727728293
- Item #: 9SIVRWKKXA2643
- Return Policy: Nytke team Return Policy
Refurbished: HG2-6400P Server Power Supply for Advantech Industrial Control
- Model #: 753525933970
- Item #: 9SIVSY0KUT4518
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO Power Supply For Cherokee/GE Power Supply SP590 SP590-1A
- Model #: 759950240652
- Item #: 9SIVB8UKDA0391
- 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.
