|Branding||Commodore, Unisys, and others|
|Layouts||101-key US-ANSI, ISO|
|Keyswitches||Mitsumi KPQ Type|
|Interface||AT, PS/2 for Unisys boards|
The KPQ-E99YC is a standard PC keyboard manufactured by Mitsumi, and used by brands including Commodore and Unisys. It makes use of Mitsumi KPQ Type switches incorporated into a curved switch plate and a curved backplate. Therefore, all keycaps have the same height profile.
KPQ-E99YC was sold with no top branding, and Mitsumi's name on the rear label. It was also provided as an OEM keyboard to systems manufacturers.
US-ANSI version with Commodore part number 312702-02 has Commodore's "inverted" colour scheme, i.e. the alphanumerical keys have a darker shade of grey than the modifier keys as it is often seen on Commodore keyboards.
ISO versions have been spotted with Commodore P/N 312473-XX and these appear to follow the standard colour scheme. In addition, at least the ISO-ES (Spanish) variety has been found using an AT/XT protocol switch.
The blue domes are ~40 g, and yellow space bar domes ~50 g.
- Geekhack — Commodore keyboards