Everdrive
From Sega Retro
The Everdrive family is a series of cartridges which allow ROMs to be played from SD cards on original hardware. Cartridges produced so far are the Everdrive-MD (Sega Mega Drive), Master Everdrive (Sega Master System), Everdrive GG (Sega Game Gear), Super Everdrive (Super Nintendo) and EverDrive 64 (Nintendo 64). The carts are manufactured by Ukrainian developer KRIKzz and sold by various international distributors. They are sold as PCBs only, meaning the buyer must provide their own plastic case by gutting another cartridge. However some distributors include these with the sale, as well as extras like a clamshell case and an SD card.