Able to keep up with the speed demands of the latest mobile devices, the Class 10 speed rating of our new 16 GB micro SDHC card guarantees a minimum sustained transfer speed of 10 MB/s. Users of such capacity are now able to store vast amounts of multimedia content & they don't have to wait ages to upload them. Dimensions: 11mm x 15mm x 1mm High-Speed Class Rating: 10 Read speed: 10MB/sec. minimum data transfer rate Write speed: 10MB/sec. minimum data transfer rate Operating Temperature: -25°C to 85°C Storage Temperature: -40°C to 85°C