Sega Card

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The Sega Card, known in Japan as Sega My Card, is a memory card format used as game storage for the SG-1000/SC-3000 and the Mark III / Master System. Produced from 1985 to 1987 by Mitsubishi Plastics, the cards are plugged into onboard cardslots or into compatible adapters. Several versions of the format were created, including a rewritable one that allows new titles to be downloaded to a card. While substantially cheaper to produce than cartridges, the storage limitations of the format resulted in Sega exclusively distributing games on cartridges. Despite the failure of the Sega Card, NEC found more success with its own memory card format, the HuCard, which was the primary storage medium for its PC Engine game console.