Integral 128GB SD Card 4K Ultra-HD Video Premium High Speed

Over 50 Million Memory Cards Sold By Integral, 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 50MB/s write speed, High temperature resistance, water resistant, Shock proof and X-ray proof