The Original Sega AC Adapter 3025 MK-3025 Power Base is a wired AC adapter designed specifically for the Sega Master System console. Manufactured by SEGA, this adapter is compatible with the Sega Master System model and is the OEM power source for the console. It provides reliable power supply for hours of gaming enjoyment, making it a must-have accessory for Sega Master System enthusiasts looking to enhance their gaming experience.