The three most well-known codices in the Jewish biblical tradition are the Cairo Codex, the Aleppo Codex, and the Leningrad Codex. At one time or another, each was in possession of the Karaite Jewish community.
The Cairo Codex is an ancient vocalized manuscript of the Nevi’im, i.e., all of books of the prophets in the Tanakh. It is commonly believed that the Cairo Codex of the Prophets was written by the Karaite Moshe ben Asher in the year 895/896. [1.]
But it turns out that this common belief is almost certainly wrong.