The Amstrad plus range was introduced in September 1990, and consisted of the 464plus and 6128plus models. They were essentially Amstrad's attempt to prolong the lifespan of their computer line by giving them various hardware upgrades, as well as native cartridge support. However, the fact that they still used 8-bit architecture proved unattractive to consumers, especially in the dawn of the 90s, in which the market had already mostly shifted to 16-bits like the Amiga.
The plus range also included the GX4000, a home console which had shared hardware architecture with the computers, but without keyboard or mass storage support. While technically impressive, it suffered from a weak game library (26 released games, mostly from British and French publishers) and limited press coverage, and the series was discontinued not long after release.