These plates are not compatible with Hi-Pro cases.
MX plates are compatible with Cherry MX keyswitches, and MX clones. Matias plates are compatible with Matias and Alps keyswitches. Each plate allows for the 2u space or grid layout, and each has 5 holes for the screws to attach it to the milled bottom.
Stainless steel plates are 16 GA 304 stainless steel, and brass plates are .063" 260 brass.
Does not include stabilizers