A 3D printed adapter for the Versa64cart in the Kradex Z-7 and the Maszczyk KM-20 cartridge cases. Both work well as Commodore C64 cartridge cases.
This adapter is not a requirement, but it keeps the Versa64cart straight in the case.
Adapter in Z-7
Versa64cart with adapter in the Z-7 case
Versa64cart with adapter in the KM-20 case