This Module is currently available.
ER-Patch 16x16 Matrix Module
Features at a glance:
The Patch module provides a 16x16 crosspoint matrix. DC Coupled so that Audio, Control Voltage, or even Trigger or Gate signals may be routed. Two ER-Patch Modules with Expansion boards can be combined to make a single 32x32 crosspoint Matrix.
These merchants probably sell this module. Huh?