Jens Guenther has updated his fork of the SDLTRS Emulator to version 1.2.23. Changelog includes:

Updates:

• Added Anitek MegaMem card for TRS-80 Model III and 4/4P.
• Added support for TRS-Model III 4 MHz speedup hardware.
• Added SIO (serial port) for TCS Genie IIIs.
• Added TCS Genie IIs/SpeedMaster RAM 192 B memory expansion.

Fixes:

• Fixed TCS Genie IIs/SpeedMaster emulation.
• Fixed boot of G-DOS 2.4 for Genie I/II.

You can download the most recent SDLTRS II from the Gitlab page: https://gitlab.com/jengun/sdltrs.