Lexar LKSTF1066X High-Speed TF Card Motion Camera Surveillance Recorder Memory Card, Capacity: 64GB 1. Features: durable and stable, widely compatible, temperature and cold resistance, waterproof and shockproof 2. Capacity: 64GB 28GB 256GB 512GB 3. Function: storage, recording 4. Write speed: up to 120MBs 5. Read speed: up to 160MBs 6. Storage temperature: -20 to 85 degrees Celsius 7. Operating temperature: 0 to 70 degrees Celsius 8. Applicable objects: MP3, mobile phones, MP4, game consoles, card speakers, amplifiers, drones, action cameras, etc. 9. Dimensions: 15 x 11 x 1 mm 10. Weight: about 15g Features: 1. Persistent and stable storage through rigorous testing：For Lexar product designs are subjected to extensive testing in the Lexar Quality Laboratory (a laboratory of over 1,100 digital devices) to ensure performance, quality, compatibility and reliability. 2. Equipped with self-developed WRITE BOOST reading and writing technology, it can record 4K UHD and 1080P high-definition video smoothly, and it is not easy to miss seconds or get stuck, and give full play to creativity. 3. High-speed transmission of 4K Vlog material, 1G file is transmitted in about 6 seconds, improving editing efficiency and sharing creations in a timely manner 4. No fear of cold weather, high and low temperature resistance, stable operation of shooting, strong waterproof and durable, no problem for swimming, surfing, snorkeling and other wading shooting 5. A2 performance, as smooth as native built-in storage