SanDisk Extreme Pro 256GB Mobile microSDXC 170MB/S read, 90MB/s write CLASS 10/UHS-3, Get faster app performance, Great for capturing 4K UHD Videos, Ideal for Action Cam, Drones, and Smartphones

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® PRO microSDXC™ memory card reads up to 170MB/s*8 and writes up to 90MB/s.*8  Plus, it's A2-rated, so you can get fast application performance for an exceptional smartphone experience.*5

Save time transferring content

Quick read speeds of up to 170MB/s*8 let you transfer 1000 high-resolution photos and 30 minutes of 4K video (24GB) in less than 3 minutes.

Write speeds of up to 90MB/S

Capture fast-action photos or shoot 4K UHD video*2 with write speeds of up to 90MB/s.*8 The SanDisk Extreme® PRO microSDXC™ UHS-I Card lets you shoot more and faster.

Great for capturing 4K UHD video

Ideal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. With up to 1TB*1, the SanDisk Extreme® PRO microSD™ UHS-I card lets you capture uninterrupted 4K UHD*2 and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings.*4

Load apps faster with A2

Get faster app performance for an outstanding smartphone experience thanks to the SanDisk Extreme® PRO microSD card's A2*5 Specification.

Durable design for use in extreme environments

SanDisk Extreme® PRO microSDHC™ and microSDXC™ UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof,*3 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 170MB/*8, so you can move big files fast, move a lot of files fast or just make frequent file transfers that much quicker.

Download data sheet: https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/sandisk/product/memory-cards/extreme-pro-uhs-i-microsd/data-sheet-extreme-pro-uhs-i-microsd.pdf
**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. Card only. See www.sandisk.com/proof for additional information and limitations.
4. 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.
5. For 64GB-1TB ONLY: A2 performance is 4000 read IOPS, 2000 write IOPS. For 32GB: A1 performance is 1500 read IOPS, 500 write IOPS. Results may vary based on host device, app type and other factors.
6. Registration required; terms and conditions apply.
7. www.sandisk.com/wug
8. For 64GB-1TB: Up to 170MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Up to 90MB/s write speeds. For 32GB: Up to 100MB/s read speeds; up to 90MB/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.