The product we have for review today, the BPU-2535v2, allows you to install up to two 2½" SATA hard drives or solid state drives into an external 3½" drive bay. The drive slots are hot-swappable and feature key locks to prevent someone from walking off with your drives. With the growing popularity of SSDs and their frequent use in desktop machines, which are not traditionally setup for 2½" drive mounting, adapters like the BPU-2535 are needed to provide a solid method of installation. The fact that this iStar unit can fit not just one but two 2½" drives into one 3½" bay will be sure to please those enthusiasts who are using dual SSDs in a RAID configuration.