Power Supplies - Showing 2305 - 2328 of 17942 Products
Refurbished: KHACHIMO 36V 120W Power Supply ZWS120PPF-36 ZWS120PPF
- Model #: 759950246920
- Item #: 9SIVB8UKDA9449
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO JUMPER400 rated 400w desktop silent power supply
- Model #: 745635673501
- Item #: 9SIVB8UKD64751
- Return Policy: Magicpower Return Policy
Refurbished: For ATX-250SD Computer Industrial Control Host Server Desktop Power Supply ...
- Model #: 722954727665
- Item #: 9SIVB8UKAA7444
- Return Policy: Magicpower Return Policy
Refurbished: FSC025 JPSU-850W-AC-AFI 740-053351 QFX5100 850W AC Switching Power ...
- Model #: 724780183233
- Item #: 9SIVB8UKA98989
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3400 3500 3650 835W Switching Power Supply DPS-835AB A ...
- Model #: 744623311272
- Item #: 9SIVB8UKD12185
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply EPW20-48A
- Model #: 726099222221
- Item #: 9SIVB8UKCU6151
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DPS-650QB A 650W Redundant Power Supply
- Model #: 716837097686
- Item #: 9SIVB8UKX62984
- Return Policy: Magicpower Return Policy
Refurbished: For FSP300-702US FSP400-702US FSP300-601UD FSP300-702UJ Power ...
- Model #: 726727819984
- Item #: 9SIVRWKKXB1480
- Return Policy: Nytke team Return Policy
Refurbished: For ST-550P-AD ST-550P-AG FS300S40G EADP-524BA A PC1U-210P-X2S
- Model #: 726727820645
- Item #: 9SIVRWKKXB1476
- Return Policy: Nytke team Return Policy
Refurbished: ACE300F 300W AC3-OFNC-00 AC3-GGGG-00 AC3-FWCB-00 AC3-OHRM-00 ...
- Model #: 724780181451
- Item #: 9SIVB8UKA98812
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For FSP 650W Power Supply FSP650-802U
- Model #: 703454715949
- Item #: 9SIVB8UKAJ5956
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply SPR1CA3508
- Model #: 722954725111
- Item #: 9SIVB8UKAA7170
- Return Policy: Magicpower Return Policy
Refurbished: PSU For Emacs 600W Switching Power Supply GIN-3600V
- Model #: 722954986987
- Item #: 9SIVB8UKAA6420
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply GW-CRPS550N2C 550W RG-PA550l-F TCS81-100-P
- Model #: 716837093183
- Item #: 9SIVB8UKX61702
- Return Policy: Magicpower Return Policy
Refurbished: For GIN-3800V 800W server power supply
- Model #: 726727723533
- Item #: 9SIVRWKKXA2402
- Return Policy: Nytke team Return Policy
Refurbished: For 300-1568 SUN N240 V240 Server Power Supply ASTEC AA22770 ...
- Model #: 722954725999
- Item #: 9SIVB8UKAA7275
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MG1X/RG1X/G1X/R1X-1060V12 (ROHS) 60W Power Supply ...
- Model #: 792597710034
- Item #: 9SIVRWKKXD4118
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Module PHD3000S12-CE
- Model #: 703454717820
- Item #: 9SIVB8UKAJ6222
- Return Policy: Magicpower Return Policy
Refurbished: For R520 G6 36001054 P2W-5657P 650W 2U Server Power Supply
- Model #: 722954724527
- Item #: 9SIVB8UKAA7082
- Return Policy: Magicpower Return Policy
Refurbished: 3850 Switch Power Supply PWR-C1-440WDC
- Model #: 753525987577
- Item #: 9SIVB8UKAA8720
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO T168 G7 TS430 TS530 400W Switching Power Supply GPS-400CB B ...
- Model #: 744623311746
- Item #: 9SIVB8UKD19650
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-3531A YM-3531AAR SS5000J-16 Power Supply 530W GS3016
- Model #: 792597709670
- Item #: 9SIVRWKKXD4126
- Return Policy: Nytke team Return Policy
Refurbished: For Hard Disk Enclosure/Disk Array Power Supply for ElanVital EVM-3614-00 ...
- Model #: 724780182052
- Item #: 9SIVB8UKA98857
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For R-SENDA 450W Switching Power Supply GK-450U SD-450TK
- Model #: 703454715888
- Item #: 9SIVB8UKAJ5933
- 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.
