Bestmedia PLATINUM microSDHC Card (SD-Adapter) 4 GB Class6. Internal memory: 4096 MB, Flash card type: Micro Secure Digital High-Capacity (microSDHC), Read speed: 12 MB/s. Weight: 2 g, Width: 11 mm, Depth: 15 mm. Operating temperature range (T-T): 0 - 55 °C, Storage temperature range (T-T): -20 - 65 °C. Colour of product: Black