1、All USB are double‑tested before shipment, brand new and Class A chip USB flash drives, with stable and reliable performance. 2、Metal shell made of high‑quality , durable, portable and waterproof, can prevent loss. 3、Compatible with all devices with USB‑A port desktops, laptops, tablets, TVs, speakers. 4、Brand new and Class A chip U disk, stable and reliable performance. All USBs are double tested before shipment. 5、Can be given to your family, friends, students, teachers, neighbors, or to colleagues as company benefits. 1 x USB Flash Drive Item Type: Storage Memory StickMaterial: MetalCompatible System: for Windows 7/8/10 / Vista / XP / Unix / 2000 / ME / NT Linux / OS X, etc.Scope of Application: Data Storage, Transmission and Sharing of Music, Photos, Movies, Designs, Manuals, Handouts, Homework, etc.