This is the mode required for writing to cards and using dedicated encoding software (like TheJacs or other proprietary club management software).
Check the chip on the device's circuit board (visible through the bottom vents). If it says PL2303 , use Prolific drivers. If it says CH340 , use WCH drivers. Most modern MSR206U units are PL2303 . msr206u driver
: Requires compiling the driver source code (using make inst ), which creates the msr206.o file to interface with the kernel. This is the mode required for writing to