DeLOCK 2GB SD. Internal memory: 2048 MB, Flash card type: Secure Digital (SD), Read speed: 12 MB/s. Width: 24 mm, Depth: 32 mm, Height: 2.1 mm. Endurance: 100000 cycles per logical sector. Input voltage: 3.6 V. Operating temperature range (T-T): 0 - 60 °C