If your unit is an EpoMaker variant, you can find the driver on the Epomaker Download Center by searching for "TM680".
For users looking to operate the device, follow this quick-start guide: tm680 keyboard software
However, the standout hardware feature of the TM680 is its three knobs, and the software is where these knobs come to life. Out of the box, the knobs control volume, zoom, and backlight brightness, respectively. But within the software, each knob’s rotation (clockwise/counter-clockwise) and push-click can be reassigned to virtually any function. A video editor might assign the first knob to timeline scrubbing, the second to volume, and the third to zooming. A musician could use the push-clicks as play/pause, record, and stop. This level of granular control over a physical encoder is rare in the sub-$100 category and represents the software’s most compelling feature. If your unit is an EpoMaker variant, you