It contained prison colonies for Kiffu's sector, overseen by the Kiffu Guardians, having served as a Republic prison world since at least 3000 BBY. Prior to that it was used as a prison colony for the Sith Empire during the annexation of the system. In one of the many holding cells, the Dark Jedi Volfe Karkko was kept in a stasis field. In 30 BBY, the Jedi Aayla Secura accidentally released him. After that incident, the insane Anzati overran the planet.
Kiffex was the home world of the infamous Tonnika sisters.