The Nextbase MicroSDXC card is a U3 Ultra High Speed card. This ensures that video data is written smoothly, allowing the dash cam to capture the road in Full HD, 1440p, or 4K quality. With the included microSD to SD adapter, you can easily read the files on your PC or laptop. With a capacity of 128 GB, the MicroSD card can record approximately 16 hours of HD footage before the dash cam overwrites the oldest recordings, or 8 hours when a rear camera module is used. This provides you with ample capacity to capture every incident and ensure you have the necessary evidence. It offers read speeds of up to 100 MB/s and write speeds of up to 70 MB/s.