Integral 32GB SD Card 4K Ultra-HD Video Premium High Speed

Over 50 million Memory cards sold, Look for the U3 icon - This indicates a high-speed card. U1 cards are standard speed, Look for the read and write speed. Standard cards only indicate the transfer speed (read). buy a premium high-speed Memory card at a standard price, Premium high-speed performance: up to 100MB/s read speed and 30MB/s write speed, High temperature resistance, water resistant, Shock proof and X-ray proof