SANDISK 512GB Extreme microSD Card + Adapter, Up to 190MB/s Read Speeds

The SanDisk Extreme microSDXC memory card lets you save time transferring media with read speeds of up to 190MB/s (1) powered by SanDisk QuickFlow Technology (2). Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately). With write speeds up to 130MB/s (1) its ideal for your Android smartphone, action cameras, or drones. This high-performance microSD card handles 4K and 5K UHD video recording, Full HD video (3), and high-resolution photos. ^^ (1) Up to 190MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds.

Up to 130MB/s write speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1, 000, 000 bytes. (2) SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, 400GB, 512GB, and 1TB capacities. [1GB=1, 000, 000, 000 bytes and 1TB=1, 000, 000, 000, 000 bytes. ] Actual user storage less. (3) Compatible device required. Full HD (1920x1080) and 4K UHD (3840 x 2160), and 5K UHD (5120 X 2880) support may vary based upon host device, file attributes and other factors.

See HD page on SanDisk site.