Topram 32GB USB 3.0 Flash Memory Drive, High Speed (135MB/s Read : 35MB/s Write), Retractable Connector Large Capacity: 32GB / Compact and Slim in Size Compliant with USB specification version 3.0 (Backward compatible with USB 2.0) Fully plug & play and Hot Swappable. Driver-less in Windows 7 / 2000 / XP / Vista, Mac OS 10.2.8, Linux 2.4.10 USB 3.0 Speed Ratings: Read Speed: up to 135MB/s - Write Speed: up to 35MB/s USB 2.0 Speed Ratings: Read Speed: up to 35MB/s - Write Speed: up to 20MB/s