GLINK232 is an UART cartridge for the Commodore 64/128 developed by GG Labs. The standard communication of the Commodore 64/128 is limited to 2400 Baud. The SwiftLink232 and turbo232 cartridges could reach higher communication speeds but these cartridges are no longer in production. The GLINK232 Can reach communication speeds up to 38400 Baud.
Website: http://gglabs.us