Unleash extreme speed. The SD Card made for professionals. Samsung SD Card is the right memory card that enables quick transfer of a large number of files with its high performance. *Source: 2003-2022Q3 OMDIA data: NAND suppliers’ revenue market share. **The foregoing read & write speed performance is based on testing of 512GB capacity under standard conditions. Actual speeds may vary depending upon card capacity. For products incompatible with UHS-I interface, the speeds may vary subject to different interface conditions. ***Host device compatibility may vary. ****Image 3840*2880 (Avg Pic size 5.5 MB). *****Test Device: Sony Alpha 1. ******Waterproof: 1M depth, salt water, 72hrs. Temperature proof: Operating temperatures of -25°C to 85°C, non-operating temperatures of -40°C to 85°C. X-ray Proof: 100mGy (equal to airport Xray machines). Magnet-proof: Up to 15,000 gauss. Shock proof: shock up to 1,500g* (g*: gravitational acceleration). Drop: withstand drops up to 5 meters (16.4 feet). Wearout: up to 10,000 swipes. 7Samsung is not liable for any i) damages and/or loss of data or ii) expenses incurred from memory card data recovery.