Professional-Level Performance to Capture Stunning 4K Video Designed for your DSLR or mirrorless cameras, the Lexar Professional 1800x SDXC UHS-II Card GOLD Series lets you quickly capture and transfer high-quality photos and stunning Full-HD and 4K video with speeds up to 270MB/s read. With the latest UHS-II technology and Video Speed Class 60 (V60) rating, this card dramatically accelerates your workflow from start to finish. Speed-Up your Workflow from the Field to Post-Production Lexar Professional 1800x SDXC UHS-II Card GOLD Series offers super-fast read speeds up to 270MB/s to accelerate your post-production workflow - saving you time and getting you back to the business of photography V60 Rated to Capture Smooth Full-HD and 4K Video With the latest UHS-II technology and write speeds up to 180MB/s, the Lexar Professional 1800x SDXC UHS-II Card GOLD Series allows you to handle photos in burst mode with ease. And, with V60 and UHS Speed Class 3 (U3), seamlessly capture stunning Full-HD and 4K video with large capacity options up to 256GB. Designed for Durability These cards provide the performance you need to capture and store valuable data in a variety of elements. Lexar Professional 1800x SDXC UHS-II Card is water-proof, temperature-proof, shockproof, vibration-proof, and X-ray-proof. Backwards Compatible at the Highest UHS-I Speeds For versatility, the cards are also backwards compatible with UHS-I devices, performing up to the maximum thresholds of UHS-I speed capabilities. Rigorously Tested All Lexar product designs undergo extensive testing in the Lexar Quality Labs, facilities with more than 1,100 digital devices, to ensure performance, quality, compatibility, and reliability.