拡張 かくちょう記憶 きおく装置 そうちではありませんでした
kakuchōkiokusōchidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 拡張記憶装置

1. Was not an expansion memory device.; Was not a memory expansion unit.

Past/Perfective
Negative
Polite
Formal Register
Computing