Hi Borichka,
the SW & HW of this item is non available yet.
This card is compatible with your HB G900P.
In 2 weeks, is posible I can make 6 units for sale.
This version V6 is actualizable, the old was one OTP (On Time Programming).
Is one actualization of old version from more of 17 years ago.
The SW is flash reprogramable.
If they are to add or change some Keys it can be actualized.
As curiosity, http://www.msxcomputermagazine.nl/mccw/92/Keyboard/nl.html
