Sandisk Ultra A1 Micro SD 512GB (150MBs)

Rated A1, the SanDisk Ultra 512GB Micro SDXC UHS-I Memory Card keeps your photo/video collection, documents, and other files easily accessible when you need them even when you’re out and about.
Key Features
Offers read speeds of up to 100MB per second* for fast browsing of stored content
Use together with the SanDisk Memory Zone app (download required) to conveniently back up, view, and organise stored photos, videos, or documents
*Up to 100MB/s read speed; write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.