The SG-1000 Mark II (エスジー・セン Esujī Sen II), also known as the Sega Game 1000 Mark II, was a cartridge based video game home console manufactured by Sega and released in Japan, Australia, and other countries in the early 80s.
The console was released in July 1984 as an improved version of the original Sega SG-1000 console from a year before. It featured a few hardware tweaks from the original model, including detachable gamepads and the ability to play Sega Card games.
The Mark II did not sell well, however, leading to Sega's decision to continue work on its video game hardware. This would result in the release of the Sega Mark III in Japan in 1985, which later became the Sega Master System worldwide.
