Real Racer is compatible with any HC type microSD card. Generally any microSD card with a capacity from 2GB to 32GB will be microSD HC. You can identify compatible microSD cards by the “microSD HC” logo on the front face of the card, as in the following example:
In addition, it is recommended that you use Class 10 microSD cards, as these have write speeds sufficient for storing the real-time video footage produced by Real Racer. The class rating is the number within the partial circle (the example above shows Class 10).