Description: 1. Use this adapter you can convert M.2 NGFF Interface SSD ASUS UX31 UX21 notebook SSD Interface. 2. Board has four mounting holes, respectively 22 * 30 mm, 42 mm 22 * 22 * 22 * 60 mm 80 mm of SSD. 3. M.2 NGFF Interface points B KEY and MKEY two interfaces defined in this paragraph adapter only supports B KEY interface definitions. Goliton? is a registered trademark protected by the United States Trademark Law. Goliton? products are sold by authorized sellers with Goliton package only.