8K UHD video recording, the best choice for professionals The XTREEM SDXC CARD has UHS Speed Class II and Video Speed Class V60. It can meet the needs of professionals for high quality video recording. High speed continuous shooting without missing frame With up to 250MB/s of read speed and 120MB/s of write speed, there won’t be any missing frame when taking high speed continuous shots. Every wonderful moment can be recorded. Large capacity, ideal for long time shooting 64GB~256GB large capacity, ideal for long time shooting without replacing the memory card. Rigorous testing and durable design It has passed rigorous testing and it is designed for waterproof, shockproof, X-ray proof, anti-static and extreme temperature resistant. It can be used in harsh environments with confidence.