Why single XB2.7S image?
The Mechtronic Basic XBPlus.bin, XBPlusd.bin, XBPlusg.bin or
Super Extended Basic (2.5, 2.6) - superxbc.bin, superxbd.bin, superxg.bin or
the RXB 2015 - rxb2015c.bin, rxb2015d.bin, rxb2015g.
I am composed of 3 parts of the program.
Actually, the XB2.7 should also be able to be loaded in FG99