Lexar Professional SILVER 512G SDXC™ UHS-I Card up to 225MB/s read, up to 160MB/s write Interface UHS-I Speed 64GB up to 225MB/s read, up to 110MB/s write1 128GB up to 225MB/s read, up to 160MB/s write1 256GB up to 225MB/s read, up to 160MB/s write1 512GB up to 225MB/s read, up to 160MB/s write1 1TB up to 225MB/s read, up to 160MB/s write1 Operating Temperature -25℃ to 85℃ (-13℉ to 185℉) Storage Temperature -40°C to 85°C (-40°F to 185°F) Warranty Limited lifetime warranty