The Transcend High Endurance USD350V 512 GB Class 10/UHS - I (U3) V30 microSDXC card is designed for write - intensive applications such as dashcams and security cameras. With a read speed of up to 100 MB/s and a write speed of 60 MB/s, it ensures smooth recording of Full HD videos. This microSDXC card is engineered to withstand harsh conditions, being waterproof, temperature proof, X - ray proof, and shock proof, making it ideal for outdoor and demanding environments. With a massive 512 GB capacity, it allows users to store a vast amount of data, including music, videos, photos, and games, without the need to frequently delete files. The Class 10/UHS - I (U3) rating guarantees high - speed performance, enabling the capture and storage of HD video at up to 1080p resolution.