Get extreme speeds for fast transfer, app performance, and 4K UHD video.¹ Ideal for your Android™ smartphone, action cameras or drones, this high-performance microSD™ card handles 4K UHD video recording, Full HD video and high-resolution photos. The super-fast SanDisk Extreme® microSDXC™ memory card reads up to 160MB/s* and writes up to 60MB/s.* Plus, it’s A2-rated, so you can get fast application performance for an exceptional smartphone experience.² Memory Card Features 64GB Class micro SDXC Card Transfer speed: up to 160MB/s Write Protect Switch: Yes Adapter included: Yes 4K UHD and Full HD-ready with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)