The iSG55-ULF80A is a state-of-the-art fully automatic ultra-low temperature storage system for biological samples at −80 ∘ C. Equipped with proprietary refrigeration and PID temperature control technology, it maintains precise and uniform internal temperatures to ensure the safe storage of samples. The unique sample transfer passage guarantees frost-free transfer throughout the entire process. The intelligent automation management system balances high-density storage with convenient operation, meeting a variety of user needs.