The speed you need for 4KA Toshiba EXCERIA M302 is the microSD card you need if you want to record 4K or Full HD videos on your smartphone, tablet or sports camera.Toshiba microSD cards offer high capacity storage of up to 128GB in a small package. The cards achieve an incredible Read Speed of 90MB/s.The SD adapter included with the card gives you a wide variety of usages. Now you can take hundreds of pictures with your smartphone or store your music and 4K videos.The series is made for hard conditions: it is waterproof, shock proof and X-Ray proof.