noun
Technical term in computing and electronics for a unit that supplies power to a device.
新しいパワーサプライをパソコンに取り付けた。
I installed a new power supply in my PC.
Variant with interpunct; less common in running text but seen in technical contexts.
電源 is the general Japanese word for power source or power supply, used in everyday contexts. パワーサプライ is a loanword used mainly in computing and electronics.
Loanword from English 'power supply'.