The Cryogenic Storage is an object in Metroid Prime Hunters, found in the Fuel Stack room on the Vesper Defense Outpost. Its purpose is to ensuring that fusion-powered weaponry aboard the outpost remains stable and does not overheat. Since much of the station has frozen over due to a gradual deterioration of the VDO's fuel containment units, overheating of the fusion weaponry is very unlikely.
Samus Aran's Gunship features cryostasis technology that is seen in Metroid Prime 3: Corruption. In Metroid Prime 2: Echoes, surviving members of the Luminoth race (with the exception of U-Mos) are found utilizing hibernetic stasis chambers, which they come out of after Dark Aether's destruction.
Metroid Prime Hunters
Weapon storage containers. Maintained at subzero temperatures for stability and to prevent overheating of fusion-powered weaponry.