Ciway Diamond USB Flash Drive, Cordiform Design Pendant Necklace USB 2.0 Memory Disk Drive 1. 100% Genuine capacity. All tested before shipment by H2 to make sure the genuine capacity 2. Fashion Heart design with bling bling diamond, multiple color available,Small and pocket-sized with 65cm necklace (when looped to be about 32cm),come with gift box 3. Plug-and-play, no need install extra software 4. Operating system supported: Window 98/98SE/ME/2000/XP,Windows 7/8/10,Mac OS(10.3x above),Linux Kernel (2.6 and above) 5. High speed in writing /reading transfer, Store and save all your photographs, videos, movies and music via any USB port