Power Supplies - Showing 1921 - 1944 of 17990 Products
Refurbished: SSP-300SUG SS-250SU, etc. Small 1U 250W 300W Power Supply
- Model #: 722954736230
- Item #: 9SIVB8UKAA6234
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PUI108E-2Z 100W
- Model #: 792597724048
- Item #: 9SIVRWKKXD8922
- Return Policy: Nytke team Return Policy
Refurbished: For Communication Power Monitoring Module SMU01A
- Model #: 722954726675
- Item #: 9SIVT8HKWF3083
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for PWS-2K21A-BR 2200W 20 Node Server Power Supply
- Model #: 716837093053
- Item #: 9SIVB8UKX61698
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3.3V10A 50W Power Supply PBA50F-3R3-R PBA50F
- Model #: 759950240089
- Item #: 9SIVB8UKDA0358
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U PMBUS 650W Switching Power Supply S12-650P1B
- Model #: 744623303024
- Item #: 9SIVB8UKCW6057
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 750w power supply GW-BNF750w
- Model #: 792597985159
- Item #: 9SIVB8UKX57240
- Return Policy: Magicpower Return Policy
Refurbished: 1U 250W Power Supply FSP250-50PL
- Model #: 753525941562
- Item #: 9SIVB8UKAA5002
- Return Policy: Magicpower Return Policy
Refurbished: PCSA-300P-X2S DC Power Supply
- Model #: 753525948714
- Item #: 9SIVB8UKAA0038
- Return Policy: Magicpower Return Policy
Refurbished: M6412A 4G Fiber Controller AG638-60410 AG638-04500 461494-005
- Model #: 722954736414
- Item #: 9SIVB8UKAA6261
- Return Policy: Magicpower Return Policy
Refurbished: DL 580G3 580G4 Server Power Supply HSTNS-PA01 406421-001 337867-501
- Model #: 722954735431
- Item #: 9SIVB8UKAA6157
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P2G-6460P 2U server power supply P2G-6510P EPAP-482
- Model #: 716837092940
- Item #: 9SIVB8UKX61564
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R720 R620 R820 Server 750W Power Supply DPS-750AB-2D ...
- Model #: 792597723201
- Item #: 9SIVRWKKXD8798
- Return Policy: Nytke team Return Policy
Refurbished: For switching power supply, Delta DPSN-350CB G S4810P switch
- Model #: 752804574033
- Item #: 9SIVRWKKXB1840
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 24V 150W Power Supply ACS150B-24 ACS150B
- Model #: 759950243004
- Item #: 9SIVB8UKDA8956
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for WOPSA1700 ME170-12A server switching power module
- Model #: 792597724727
- Item #: 9SIVRWKKXD9240
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Micro MATX HTPCFX 300W Switching Power Supply HK400-41FP
- Model #: 744623315409
- Item #: 9SIVB8UKD46440
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power 15V 250W Power Supply CCM250PS15 CCM250PS
- Model #: 759950239571
- Item #: 9SIVB8UKDA0306
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For 12V29A 350W Power Supply S8FS-C35012-400
- Model #: 759950246753
- Item #: 9SIVB8UKDA9439
- Return Policy: Magicpower Return Policy
Refurbished: For M1Z-5500V Firewall Industrial Computer 2U Server Power Module 500W
- Model #: 722954727030
- Item #: 9SIVB8UKAA7348
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO New Original PSU For 3Y 1U 500W Switching Power Supply YM-5501D
- Model #: 744623302355
- Item #: 9SIVB8UKCV8225
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For ARBOR AT P8P9 250W Power Supply ZKS-250A
- Model #: 759950246555
- Item #: 9SIVB8UKDA9403
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PS-5401-1HA PCE009 796346-001 796416-001 Z240 Workstation ...
- Model #: 792597707096
- Item #: 9SIVRWKKXD3459
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for EPS1U700 (90 +) 700W 1U Industrial Control Server Power Supply ...
- Model #: 792597716579
- Item #: 9SIVRWKKXD6566
- Return Policy: Nytke team 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.
