The Tof are a near-human alien race that exists in the Unknown Regions, rumored to be from the outer edges of the . Because of their alien presence in the known galaxy, any Tof items are extremely rare and have only appeared as within lost Tof starships that were sent to explore the galaxy hundreds, if not thousands of years ago. Tof Ashla are believed to be members of the faith caste of Tof society, which is reflected in the specification and configuration of the gear. The faith caste seems to be rooted in the ancient Je'daii tradition.

Encounters with the Tof are extremely rare. What little is known about them has been learned through an encounter with a Drekkar Class Battle Cruiser, known as the Dugan's Hand.