Please note that you need to choose the variant of add-ons for Q2 Max first, and then add it to cart.
Palm Rest
Plate
Q2 Pro plates are compatible with Q2 Max.
Keycaps for ANSI (US) layout
These keycap sets have the variant for Q2 / Q2 Pro, and they all have additional keycaps for Windows and macOS. Q2 or Q2 Pro keycap sets are compatible with Q2 Max.