The SanDisk SDSQXCU-064G-GN6MA is a part of the Extreme Pro series, offering a 64GB microSDXC card that combines high-speed performance with robust durability, making it an ideal storage option for professional-grade cameras, drones, and action cameras. It is equipped with the latest UHS-I U3 and V30 video speed class ratings, ensuring smooth 4K UHD video recording and playback, with breakneck read and write speeds of up to 200MB/s and 90MB/s respectively. The A2 rating guarantees that applications load quickly for a better smartphone experience. This card from WD/SanDisk Retail is designed to withstand extreme conditions, being waterproof, shockproof, and X-ray-proof. The SDSQXCU-064G-GN6MA stands out as a top-tier choice for professionals seeking performance and reliability.