All Yume Group hardware that they developed

Title	Product type
MSX Version Up Adapter NEOS MA-20(R) + MA-20(V) equivalent. Requires Yume Group MSX Pi.	MSX2 upgrade board
MSXpi Product name: MSXπ	FlashROM
t13noid Arkanoid paddle controller https://github.com/piigaa-densetu-two-dai/t13noid Whether one has been ever sold is uncertain.	Joystick/pad
Yami Slot 2 slot expander kit for Casio PV-7 Product name: 闇スロット	Slot expander
Yume SCC 2 slot expander with the switch that disables the game of the SCC game rom in slot 1/SCC so that the game in slot 0/ROM can be played with SCC Product name: 夢SCC	Other Audio

All hardware: Yume Group