<ul><li>Up to 300 MB/s for 256/128GB models; Up to 200 MB/s for 64/32GB models.</li><li>Up to 72 hrs in seawater</li><li>Up to 1,500 gravitational acceleration.</li><li>Withstands -25°C to 85°C operating, -40°C to 85°C non-operating</li><li>Up to 15,000 gauss (equal to MRI).</li><li>Up to 50 Roentgen (equal to airport X-ray machines).</li><li>Note: Actual speed may vary depending on the conditions of the host device (card reader, adapter, USB port, etc.) the writing speed will be slightly lower</li></ul>