Not all devices support SDXC memory card formats. Check with your device manufacturer for more details.

(1) Speeds vary by capacity. [256GB-512GB]: Up to 150MB/s read speed engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. [64GB-128GB]: Up to 140MB/s read speed engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. [32GB]: Up to 120MB/s read speed engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. [16GB]: Up to 80MB/s read speed; write speed lower. Based on internal testing; performance may be lower depending on host device, usage conditions, and other factors. 1MB=1,000,000 bytes.

(2) 1GB=1,000,000,000 bytes. Actual user storage less.

(3) Full HD (1920×1080) and 4K UHD (3840×2160) video support may vary based upon host device, file attributes, and other factors. Visit the SanDisk Video Knowledge Base for more information.

(4) Card only. See product packaging and the official SanDisk website for additional information and limitations.

(5) UHS Speed Class 1 (U1) designates a performance option designed to support real time video recording with UHS enabled host devices. See Consumers Speed page on SanDisk site.

(6) Speeds vary by product and capacity. For SanDisk Ultra SD UHS-I Card [256GB-512GB]: Up to 150MB/s read speed engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Write speed lower. SanDisk Extreme SD UHS-I Card [256GB-512GB]: Up to 180MB/s read speed. Engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 130 MB/s. SanDisk Extreme SD UHS-I Card [128GB]: Up to 180 MB/s read speed. Engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 90MB/s. SanDisk Extreme PRO SD UHS-I Card [256GB-1TB]: Up to 200MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 140MB/s. SanDisk Extreme PRO SD UHS-I Card [64GB-128GB]: Up to 200MB/s read speed. Write speed up to 90MB/s. Based on internal testing; performance may be lower depending upon host device. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.

Product specifications subject to change without notice. Pictures shown may vary from actual products. SanDisk, the SanDisk logo, SanDisk Extreme, SanDisk Extreme PRO, and SanDisk Ultra are registered marks or marks of Western Digital Corporation or its affiliates in the US and/or other countries. The SDHC and SDXC marks and logos are marks of SD-3C, LLC. All other marks are the property of their respective owners.

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Western Digital Technologies, Inc. is the seller of record and licensee in the Americas of SanDisk products.