Tera 9.5mm 2nd SATA HDD SSD Hard Drive Caddy Bay for Apple MacBook Pro 13" 15" 17" Pure aluminum material, good thermal diffusivity, sturdy and durable. Adopt PVC shock-proof screws and rubber pad, stable and safe. Plug and play directly, easy operation, no cables or software driver needed. Dual boot, support installation of the 2nd operating system on the 2nd HDD and boot selection. Suitable for Apple MacBook Pro (with 9.5mm CD-ROM)