Unfortunately it was only made by enthusiast of the MSX community of Korea so it will not be available for sale (at least what I can understand it). The Zemina Family Card mostly rare. If try to register in Korean website Naver then you just can send user a PM directly. Is a little bit similar to Facebook.
There was webshop with retro-game maybe 3-4 years ago. I cannot remember name. But is one of the store in Yongsan electrical town that just went online. They actually had a lot rare things. Umm. That was only the interesting web-shop of Korea about the retro games. Also in Naver there exist "cafe" or "groups" with MSX/8-bit people that has many interesting project and such thing, and sometimes for sale. If put up "WTB" there, maybe someone can sell.
for this DIY you need:
+ 12v 3.5" or 7" TFT screen (from ebay car tft)
+ msx pcb cartridge (from reprofactory f.e)
+ fix the TFT in the pcb then put a wire from +12v TFT to the PIN 48 pcb
+ the ground wire from TFT to pin 41 or 43 pcb
+ a wire from composite video signal to pin 5 pcb(not used)
Now all MSX that you want to use theTFT screen, must have composite video output and you have to fix putting a wire from composite output to pin5 slot 1 or slot 2(place where you are going to insert the TFT cartidge)
CAUTION: Be sure that your MSX has a good power supply (for TFT cons.)
If you want to add sound, ayou must add two little speakers and a sound amplifier(from ebay f.e), fix it in the pcb , put vcc and ground for it connect speakers to ampl. output. Next put a wire from amplifier input to pin16 pcb(not used) and in the same way that composite video, you must fix your MSX putting a wire from msx sound output to pin 16 in slot1 or slot2.
Do it yoursefl at your own risk.
My two TFT are working fine, I change the internal MSX computer power supply unit that use the TFT cartridge.
Then no problem with the power cons.
