読取 よみと書込 かきこ開口 かいこう じゃないです
yomitori kakikomikai kōbujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 読取り書込み開口部

1. Not a read/write aperture.; It's not a read/write opening.

Negative
Polite
Casual Register
Computing