Thinkware 128 GB UHS-1 Micro SDXC Card is essential for your Thinkware U1000, Q800PRO, F800PRO and F200, A 128GB UHS-1 Micro SD Card SD128G enables faster data transfer speed at 10MB per second. It is important to have a well-working SD card because it stores and safekeeps your valuable dash cam-generated video files, ensuring you're well equipped with evidences whenever needed. Plus, THINKWARE SD Cards come with SPOR Technology that protects the card from intense heat while safeguarding the recordings stored in it, giving you peace of mind for the long haul. Specification: Operational Temperature: -10 degree C to 60 degree C, Memory Card Format: micro SDXC, SD Speed Class: CLASS 10, U1, Cell Type: MLC (Multi Level Cell).