記憶 きおく装置 そうち保護 ほごキーだったら
kiokusōchino hogokiidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 記憶装置の保護キー

1. If it's a memory device protection key; If it were a memory device protection key

Tara Conditional
Computing