Memory Size: 16 GB Read Speed: 10 MB/s Write Speed: 2.5 MB/s Interface: USB 2.0 Data Transfer Rate: 480MB/s Backward Compatible With USB 1.1 Memory Type: Flash Memory Dimensions: 57 x 34 x 9 mm Material: Plastic Weight: 20 g Additional Information Read and Write Speed may vary depending on the capacity. Compatible Operating System iOS 5, Mac OS 10, Windows 7 (32bit/64bit), Windows Vista (32bit/64bit), Windows XP Fastener with Cap Colour: White