SANDISK 128GB Extreme SD Memory Card, Up to 180MB/s Read Speeds, UHS-I

With the SanDisk Extreme SD UHS-I memory card save time transferring media with read speeds of up to 180MB/s (1) powered by SanDisk QuickFlow Technology (2). Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately). With shot speeds of up to 90MB/s (1) and UHS speed Class 3 (U3) (4) recording, youre ready to capture high-resolution, stutter-free 4K UHD video (3). ^^ (1) Up to 180MB/s read speeds. Engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds.

Write speeds up to 90MB/s. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1, 000, 000 bytes. (2) SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, and 512GB capacities. 1GB=1, 000, 000, 000 bytes. Actual user storage less. (4) UHS Speed Class 3 designates a performance option designed to support 4K UHD video recording with enabled UHS host devices. UHS 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 the SD Associations official website. (3) Full HD (1920x1080) and 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes and other factors. See HD page on SanDisk site.