Superior speeds — Transfer and capture content faster with read/write speeds up to 170/90MB/s. Ideal for shooting 4K UHD video and burst mode photography on your DSLR — High-speeds and improved performance will help accelerate your workflow. MHS Speed Class 3 (U3) and Video Speed Class 30 (V30) speed performance — Capture high-resolution photos and videos without any interruption. Durable — For your peace of mind, the card has been extensively tested and proven to be waterproof, temperature proof, shock and vibration proof and X-ray proof.