Integral 128GB SD Card 4K Ultra-HD Video Premium High Speed Memory Card SDXC Up to 100MB/s SDXC V30 UHS-I U3 Class 10 SD Memory Card, Black

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