An information handling system storage bay accepts 2.5 inch and 3.5 inch storage drives held in a storage drive carrier sized to hold 3.5 inch storage drives and having an adapter that couples to the storage drive carrier to adapt it to hold 2.5 inch drives. The storage drive carrier is manufactured as a contiguous piece from a mold with hard plastic to integrate the adapter so that the adapter breaks free to couple to the storage drive carrier when a small size drive is to be held. Snaps in the contiguous piece couple with the adapter after the adapter is broken free to store the adapter when a larger sized drive is held by the storage drive carrier.