Lexar LSDM10 Security Surveillance Camera Dash Cam Memory Card, Capacity: 64GB 1. Features: durable and stable, widely compatible, temperature and cold resistance, waterproof and shockproof, X-ray proof 2. Capacity: 32GB 64GB 128GB 3. Function: storage, recording 4. Write speed: 32GB: up to 30MBs, 64GB128GB: up to 45MBs 5. Read speed: up to 100MBs 6. Storage temperature: -40 to 85 degrees Celsius 7. Operating temperature: -25 to 85 degrees Celsius 8. Applicable objects: cameras, recorders, drones, etc. 9. Waterproof grade: IPX7 grade 10. Dimensions: 15 x 11 x 1 mm 11. Weight: about 15g Features: 1. Durable and stable storage through rigorous testing: The designs for Lexar products have undergone extensive testing in the Lexar Quality Laboratory (a laboratory with more than 1,100 digital devices) to ensure performance, quality, compatibility and reliability 2. High durability, specially designed for high-intensity recording equipment such as driving recorders, security monitoring, etc., supports 7 x 24 hours all-weather recording mode, 32GB 64GB 128GB respectively up to 3000 hours 6000 hours 12000 hours of uninterrupted recording 3. Using V30 video light level and U3 speed, continuously and smoothly record 4K and FHD 1080P full HD video, fast transmission, record every moment clearly, 32GB adopts V10 video light level and U1 speed, continuously and smoothly record 1080P full HD video 4. High-Endurance has IPX7 waterproof, shock resistance, high temperature resistance, cold resistance and other functions, no fear of harsh environments 5. Large-capacity expansion space, storing massive large files