SiForce Portable 3.5 inch Internal Hard Drive Shockproof Case, SiForce Hard Drive Transporter Classic Hard Drive Storage Case Hard-Shell Exterior: Rigid exterior to protect the desktop internal drive and sensitive data from damage. Portable Secure Solution: Store or transport a portable 3.5 inch hard drive. Hard Drive Protection: Foam padded interior provides extra protection for safe shipping or transport of 3.5 inch internal drives. Hard Case Design: Zipper enclosure secures drive in case while enabling ease of use and drive availability External Dimensions: 7.5" x 6" x 2.5" Internal Dimensions: 5.75" x 4" x 1"