Rubber domes with Cherry-compatible sliders. And, although there IS a backlit version of this keyboard (with color-changing ability, no less), the link is to the non-backlit version. Don't get confused by the fact that the non-backlit version has colored printing on the keycaps. The backlit version has translucent slider housings so that the light can shine through, whereas the non-backlit version has black housings as shown in the link.
I see no reason whatsoever to suspect Kailh involvement with this product.
$40 is a bit much for the non-backlit version IMO.