... 3,Logo customised transcend usb 2.0 flash driver1. Available Capacity: 128MB, 256MB, 512MB, 1GB, 2GB, 4GB, 8GB, 16GB.2. Interface: USB 2.0; 3. Operating Systems ... OS 8.6 and above; 4. Transfer Rate: High Speed USB 2.0; 5. Data transfer speed: 15MB/s-21MB/s for read ... for write; 6. Compatibility: PC or Mac with a USB interface; 7. LED Indicator Light: LED Flashes when data is being read ...