This Module is currently available.
500 Series to 100 Series Adapter
API Series 500 rack format adapter module for 2 500 slots Suitable for Rodec MX Modular consoles For up to 4 100 Rodec modules API Series 500 Format Requires 2 x 500 slots
https://www.rodec.com/products/500-to-100-series-adapter
Included in 1 Racks, 1 are public: