?The Type c/usb c flash drive works with Android Smart Phone, for for Samsung GalaxyA20,A50,A60,A70,A71,A80,A90,A10,M30,S10.S10+,A50,S8,S8+,S9,S9+,S20,Note7,8,9,10,20,A5(2017)A6S,A9S,Google Pixel, LG V35 ,V30,V20,G5,G6,G7,Q8,LG Stylo 4,Hua Wei,one plus. etc.(Not for Iphone &Macbook pro 2018 USB C) ?:ATTO Disk Benchmark is the base for testing the speed of Type C Flash Drive. The Drives will provide you the Write speed of 20-50Mbps and read speed of 50-130Mbps depending apon the variant you are using. ?:USB OTG Dual Flash Drive equipped with two connectors - USB 3.0 and Type-C 3.0. It allows you a high speed data transfer between variable port devices such as Type C port mobile phones, computers, tablets, etc. ?:Storage Capacity:32GB to 512GB,Choice the best Storage capacity for yourself. .If you have any operation problems, please con tact our service support to send operation videos for your phone model. ?:1 year after-sales service. Give you great value for every cent you pay. Take advantage of the 1 years free Service that could bring safety and happiness to your mind.