Stasis capsule
From Halopedia, the Halo wiki
A stasis capsule is a piece of Precursor technology. Capsules are designed to hold subjects in a state of stasis. Like all Precursor technology, it functioned on the premise of neural physics. One capsule was discovered on Charum Hakkor, which contained a single subject, the last known Precursor. The capsule was destroyed when the Forerunners tested a Halo installation at Charum Hakkor, but the Prisoner survived and escaped.
