Freecom DataBar™ USB-2 2GB, DataBar. Internal memory: 2048 MB, Read speed: 8 MB/s, Write speed: 7 MB/s. Weight: 9 g. Data retention: 10 year(s). Operating temperature range (T-T): 0 - 45 °C, Storage temperature range (T-T): -20 - 60 °C