The TSC 2 is carried by GTFr Poseidon.
FS2 Tech Room Description
The TSC 2 container is armored, providing more protection for its cargo than does the TC 2. This armor serves mainly to protect against hull breaches due to collisions, as it's not thick enough to provide much protection against enemy attacks. TSC 2s are used in busy supply depots in which collision damage is a hazard.