Capture Your Adventures In 4K UHD Designed for your action cameras, drones, or Android smartphone, the Lexar Professional 1066x microSD UHS-I Card SILVER Series lets you quickly capture and transfer high-quality photos, including Full-HD and 4K UHD video2 with speeds up to 160MB/s read, and up to 120MB/s write1. The card is U3, V30 and A23,4 rated for high-speed performance. This card gives you the speed and storage you need to capture more adventures on the go. Quickly Transfer Content This card leverages UHS-I technology to deliver read speeds up to 160 MB/s1 allowing you to transfer high-quality photos and 4K UHD video with ease. Capture The Action Capture high-quality images and extended lengths of Full-HD and 4K UHD video with write speeds up to 120 MB/s. This card is Class 10, UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) giving you the performance you need to shoot faster and longer. Load Apps Quicker With A2 Speed With Application Performance Class 2 (A2) rating3, the Professional 1066x microSD UHS-I Card SILVER Series is also great for use with applications on your Android smartphone. Quickly run and store apps directly on the A2 memory card using an Android Adoptable storage enabled device4. Designed For Durability Lexar Professional 1066x microSD Cards provide the durability you need to capture and store valuable data in a variety of elements. These cards are rigorously tested, and designed to be water, shock, vibration and X-Ray proof5. 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.