Description: 100% brand new and high quality Feature: Made of high-quality material, durable, firm and stable for us to use. It is suitable for Lenovo 310 312 Ideapad/510 optical driver converter board. Replace your optical drive with 2.5 inch hard disk to your notebook and add additional storage. Adapter only, other accessories demo in the picture is not included! Specifications: Item Type: Adapter Material: Plastic Size: 90x16x6mm/3.5x1.6x0.2in Color: As shown Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Adapter 1 x Screwdriver 6 x Screws