Power Supplies - Showing 1993 - 2016 of 17941 Products
Refurbished: KHACHIMO 200W Switching Power Supply RP-2015-10
- Model #: 744623301839
- Item #: 9SIVB8UKCV8165
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-771-1R 710W/PWS-1K11P-1R 1010W Redundant Power Supply
- Model #: 722954730337
- Item #: 9SIVB8UKAA5618
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For 300W power supply ATX0300F5WA
- Model #: 752804572244
- Item #: 9SIVRWKKXA2072
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DS1050-3 server, power adapter
- Model #: 792597984992
- Item #: 9SIVB8UKX57176
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DPS-200PB-184 D 0X3X6 DPS-200PB Industrial Server Power ...
- Model #: 745635673389
- Item #: 9SIVB8UKD64748
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power CP2000AC54PE-H Power Module CP2000AC54PE
- Model #: 722954736698
- Item #: 9SIVT8HKWF2602
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: StorageWorks DPS-200PB-129 A EPS116 406402-001 406832-001 Server ...
- Model #: 753525987133
- Item #: 9SIVB8UKAA8692
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSE001 Small 1U Power Supply FLEX 400w
- Model #: 716837091936
- Item #: 9SIVB8UKX61143
- Return Policy: Magicpower Return Policy
Refurbished: For HEC WIN 500W Switching Power Supply HEC-500TE HEC-500TE-2WX
- Model #: 753525936063
- Item #: 9SIVB8UKA99417
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PWS-1K02A/PWS-901R-1R PWS-1K21P/1K41P/702A/902-1R ...
- Model #: 792597711390
- Item #: 9SIVRWKKXD4560
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FSP180-50FEB FLEX server, power supply 180W
- Model #: 792597726028
- Item #: 9SIVRWKKXD9516
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For XP POWER 19.6V 13A 250W Power Supply ...
- Model #: 759950242854
- Item #: 9SIVB8UKDA8863
- Return Policy: Magicpower Return Policy
Refurbished: OMR200-48A Communication Switching Power Module
- Model #: 722954726309
- Item #: 9SIVT8HKWF3079
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: PJA600F-24 600W Switching Power Supply Input AC100-240V 50-60Hz 7.5A ...
- Model #: 724780183264
- Item #: 9SIVB8UKA98953
- Return Policy: Magicpower Return Policy
Refurbished: Optitlex 3020 7020 9020MT Power Supply L290AM AC290-00 H290AM-00
- Model #: 703454720318
- Item #: 9SIVB8UKAJ6486
- Return Policy: Magicpower Return Policy
Refurbished: A840R-G 3Y YM-2102F 1000W Server Power Supply YM-2102FBR
- Model #: 753525933901
- Item #: 9SIVB8UKA99206
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 740-053351 JPSU-850W-AC-AFI power module
- Model #: 745635674560
- Item #: 9SIVB8UKDA0167
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 2U GW-ERP2U1200 (90 +) -2H 1200W power supply
- Model #: 792597983476
- Item #: 9SIVB8UKX56871
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CRPS redundant power supply DPS-1200AB-16 B 2U 1200W
- Model #: 716837092056
- Item #: 9SIVB8UKX61360
- Return Policy: Magicpower Return Policy
Refurbished: RG-PA800-PSE 800W POE Switch Power Supply
- Model #: 722954729461
- Item #: 9SIVB8UKAA5563
- Return Policy: Magicpower Return Policy
Refurbished: New PRO MAX 240W 24V 10A 1478130000 Switching Power Supply
- Model #: 753525947359
- Item #: 9SIVB8UKA99889
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U 16Pin 150W Power Supply ACE-816AP-L
- Model #: 744623308555
- Item #: 9SIVB8UKD06374
- Return Policy: Magicpower Return Policy
Refurbished: Server Workstation Medical Tower Gold Power Supply TP3-650 650W
- Model #: 753525934533
- Item #: 9SIVB8UKA99262
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for P1U-6200P VER.1.1 (ROHS) 1U industrial control, server power supply
- Model #: 792597716319
- Item #: 9SIVRWKKXD6541
- 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.
