SanDisk 512GB Extreme UHS-I microSDXC Memory Card with SD Adapter

Amazon $41.99
B&H Photo Video $41.99.
Newegg $41.99

Save time transferring media with SanDisk QuickFlow Technology
Pair with the SanDisk Professional PRO-READER SD and microSD for speeds up to 190MB/s (sold separately)
Up to 130MB/s write speeds for fast shooting
Capture stunning 4K UHD video
Shock-, temperature-, water-, and X-ray-proof
Manage files with the SanDisk Memory Zone app