This Module is currently available.
2HP Output Expander for Version 2.x XVI and F8R fader banks
Features:
USB C connection for use as a USB MIDI device and configuration via web editor
1x MIDI Output (TRS A, cable not included)
4x I2C ports with rear panel headers for inter-rack connections
I2C ports are fully buffered for safe I2C connections
Status indicator LEDs (Power/ready/activity)
Compatible with 1.xx F8R/XVI Devices (details below)
Operating instructions:
Activity LED: RED indicates start up, XVI and F8R have a 7 sec boot delay to allow for I2C communications to start correctly between devices. The LED will turn green when it is ready to use. LED will show activity (orange) when a fader is moved
MIDI: TRS A standard MIDI out. MIDI CC# can be configured for the TRS MIDI Out via web editor. Only 7bit CC MIDI messages are supported at this time
USB: USB MIDI OUT (only), class complaint USB MIDI driver. The USB MIDI can be configured via web editor independently of the TRS outputs so different CCs can be sent out via the TRS and USB MIDI
I2C: Tip SDA, Ring SCL. Each port has a corresponding header on the back for connecting modules via dupont cables. Maximum cable length is 15in (38 cm). Connecting devices via I2C is outside the scope of these instructions, please refer to the target device's manual for additional requirements.
https://michigansynthworks.com/products/exp-f8r-xvi-eurorack-expander-usb-c-midi-i2c
These merchants probably sell this module. Huh?