Port Designs Colorado Shock 2.5" HDD Case - RedPort Designs' Colorado 2. 5" Shock HDD Case is a great solution to protecting your portable external drives. This case is made of durable materials and built with a shock absorbent design. It contains an elastic strap to secure the hard drive in place. This case contains an interior pocket for your drive's cables and accessories. It is compatible with most 2. 5" external HDDs. Features: Reinforced case for hard drives Bumper design for shock