記憶 きおく装置 そうち保護 ほごキーでしょう
kiokusōchino hogokiideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 記憶装置の保護キー

1. Probably a memory device protection key.

Polite
Presumptive
Conjecture
Computing