FAST ENOUGH TO KEEP UP WITH THE ACTION Get extreme speeds for fast transfer, app performance, and 4K UHD.2 Ideal for your Android™ smartphone, action cameras or drones, this high-performance microSD card does 4K UHD video recording, Full HD video and high-resolution photos. The super-fast SanDisk Extreme® microSDXC™ memory card reads up to 160MB/s* and writes up to 90MB/s.* Plus, it’s A2-rated, so you can get fast application performance for an exceptional smartphone experience.7SAVE TIME TRANSFERRING CONTENT Quick read speeds of up to 170MB/s* let you transfer 1000 high-resolution photos and 30 minutes of 4K video (24GB) in less than 3 minutes.8WRITE SPEEDS OF UP TO 90MB/S* Capture fast-action photos or shoot 4K UHD video2 with write speeds of up to 90MB/s.*The SanDisk Extreme® microSDXC™ UHS-I Card lets you shoot more and faster.GREAT FOR CAPTURING 4K UHD VIDEO.2 Ideal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. The SanDisk Extreme® microSD™ UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings.5LOAD APPS FASTER WITH A2.7 Get faster app performance for an outstanding smartphone experience thanks to the SanDisk Extreme® microSD card’s A2 Specification.DURABLE DESIGN FOR USE IN EXTREME ENVIRONMENTS SanDisk Extreme® microSDHC™ and microSDXC™ UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof,4 so you can enjoy your adventures without worrying about the durability of your memory card.COMPATIBLE WITH MOBILEMATE® USB 3.0 READER Use the MobileMate® USB 3.0 microSD™ Card Reader with transfer speeds of up to 160MB/s*, so you can move big files fast, move a lot of files fast or just make frequent file transfers that much quicker.**DISCLOSURE** Not all devices support microSDXC memory card formats. Check with your device manufacturer for more details.* For 64GB: Up to 170MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Up to 70MB/s write speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. 1 1GB=1,000,000,000 bytes. Actual user storage less. 2 Compatible device required. Full HD (1920x1080) and 4K UHD (3840 x 2160) support may vary based upon host device, file attributes and other factors. See www.sandisk.com/HD 3 Download and installation required.See www.sandisk.com/memoryzone 4 Card only. See www.sandisk.com/proof for additional information and limitations. 5 UHS Speed Class 3 (U3) designates a performance option designed to support real-time video recording with UHS-enabled host devices. Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. See www.sdcard.org/consumers/speed. 6 Registration required; terms and conditions apply. 7 For 64GB A2 performance is 4000 read IOPS, 2000 write IOPS. Results may vary based on host device, app type and other factors. 8 Comparison based on internal testing of SanDisk Extreme® microSDXC™ UHS-l card, 400GB versus current UHS-l cards with 100MB/s stated performance. Results may vary based on host device, file attributions and other factors.