Freecom USBClip 4GB. Capacity: 4 GB, Interface type: USB 2.0, Form factor: other. Width: 31 mm, Depth: 12 mm, Height: 4 mm. Data retention: 10 year(s). Operating temperature range (T-T): 10 - 35 °C, Storage temperature range (T-T): -20 - 80 °C