The CFO is constructed from brass and walnut. Clear scratch resistant top plates protect the OLED screens and components.
Each case includes 3.0mm thick bottom plates with countersunk screw holes and matching hardware.
Switch plate options include 1.5mm and 3.0mm thick brass. The thinner plates allow for switches to snap into place. Switches won't snap into place with the thicker 3.0mm plates. However, the plates are heavier and add a more premium feel to the keyboard.
The weight of each half of the keyboard is 382 grams for the 1.5mm switch plate case and 430g for the 3.0mm switch plate option.