The Akai GXC-40 D is a cassette deck manufactured by Akai. It was introduced in the 1980s and is designed to play and record audio cassettes. The cassette deck features two tape heads, allowing for playback in both directions. It also has various playback features such as auto-reverse and Dolby noise reduction. The Akai GXC-40 D is known for its solid build quality and good sound reproduction.