Sega Master System II

Master System II is a home console released by Sega in 1990 as a cheaper version of the original console Sega Master System. The main change from the original Sega Master System model was the removal of the Card Slot. So Master System II can use only cartridges and not Sega Cards. Also it is incompatible with the 3D glasses. Other removals that led to cost reduction was the removals of the reset button, power light, expansion port, startup music and logo.