The SDSQXCY-128G-GN6MA from WD/SanDisk Retail is an exceptional microSDXC(TF) Extreme Pro card, designed to cater to the needs of high-demand users. Boasting a 128GB capacity, it operates at UHS-I Speed Class 10 performance with V30 video speed class, making it perfectly suited for recording and playing back 4K UHD videos. Additionally, its A2 rating enhances app performance, making this card ideal for use in smartphones and tablets. With transfer speeds up to 170MB/s, users enjoy a swift post-shooting transfer experience, reducing wait times significantly. Its robust build is created to withstand harsh conditions, being waterproof, shockproof, and x-ray proof. This card is a perfect blend of performance and durability for those who demand the best for their gadgets.