Hi, It is a small multi function CPLD board with a PLCC32 socket for any type of EPROM/Flash.
It has 48 digital IO pins on the board and can be used as a development board for older GameBoy and GameBoy color units to have a
16 general purpose digital IO on the game console.
You can find the boards at:
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On the page you will see some info about different ways to use this board such as 47 bits 80k deep pattern generator!
The starting price is $9.99 with flat shipping charge or $4.50 anywhere in the world.
BR, /Farhad A.