Check the listing for details. Sega Game Gear Performance Charging Pack Left Side & Right Side UNTESTED. Condition: Used. Listed at 14.99 USD. The Sega Game Gear Performance Charging Pack is a power supply unit specifically designed for the Sega Game Gear console. It includes both the left and right side components, providing a convenient and essential accessory for gamers looking to charge their device effectively. The brand, SEGA, ensures quality and compatibility with the model, ensuring a reliable power source for uninterrupted gaming sessions.