?Optional Memory Card Recommendation? VIOFO industrial high endurance microSD cards, optimized for dashcam recording, give greater assurances around compatibility and long-life durability, greatly elevating your dashcam owner experience. There are different options for your choice: 64GB/128GB/256GB/512GB. Take full advantage of ultra high speed transfer rates, transferring files between card and computer will be quick and seamless. Transfer speeds of up to 100MB/s. Support Ultra HD 4K recording. Suitable for harsh conditions, waterproof, anti-X-ray, anti-magnetic. Especially for high durability applications, ideal microSD card for dash cameras, and action cameras. VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability.