Brand: IDOBAO
Height: DSA
Material: PBT
Color: Black/Gray/White/Red supplement key

ANSI 61 key additional keys for 64 68, including additional 5 red keys

Compatibility It can be compatible with most Cherry MX 61 keyboards, XD6064, GK64, Tada68. It can support two popular XD64 layouts and one white fox layout similar to Tada68.

Incompatible If the space bar is 6u 6.5u 7u instead of 6.25u, it is not compatible, such as HHKB Cosair Logitech Razer.
You need to order additional keys to be used on these keyboards. Some old Cherry keyboards have different Spacebar Capslock rear holes and are not compatible. For example, on some Costar stabilizer keyboards of Cherry 3000 1800, the big keys may be stuck in different moldings.

You can adjust the line or replace the more popular costar plug-ins on the common market.