Silicon Power 8GB microSDHC. Internal memory: 8192 MB, Flash card type: Micro Secure Digital High-Capacity (microSDHC). Weight: 0.6 g, Width: 15 mm, Depth: 11 mm. Input voltage: 2.7 - 3.6 V. Operating temperature range (T-T): 0 - 70 °C, Storage temperature range (T-T): -25 - 85 °C, Operating relative humidity range: 8 - 95 %