A commonly used 87 key layout. This is an upper/top mount foam and as such has no standoff holes. You can check compatability at:
As this is plate foam, it should fit any TOP MOUNT case with an a.87 PCB. It was designed to fit the h87a by hineybush.
** Important Information Regarding Foam **
Thickness on this current batch of foam is 4.2mm to 4.5mm, so fit will be a little tighter than normal. It still works great, it just requires a little extra pressure while soldering your switches in place.
Had to make some adjustments to get the foam to fit in the GMMK TKL but other than that I am very happy with the performance. The sound difference is absolutely stunning (in a very positive way).