noun
enhanced Japanese keyboard
A keyboard layout with extra keys or functions for Japanese input, often used in computing contexts.
このソフトは拡張日本語キーボードに対応しています。
This software supports enhanced Japanese keyboards.
A standard Japanese keyboard; 拡張日本語キーボード adds extra features or keys beyond the basic layout.
Compound of 拡張 (extension) + 日本語 (Japanese) + キーボード (keyboard).