BPU-2535V2 internal drive cage is a compact and cost effective solution for an internal 3.5? drive cage with two 2.5? hard drives. It provides an extra storage within a compact design to satisfy many application needs. BPU-2535V2 is constructed of aluminum material that provides best heat dissipation required for high performance 2.5" laptop SATA drives. It is easy and quick to install it into any tower or rackmount chassis.