Western Digital 512GB Extreme SDXC UHS-I Card

512GB Extreme SDXC UHS-I Card

The SanDisk Extreme SDXC UHS-I card offers 512GB of storage for photographers and videographers who need fast offload and capture speeds. It delivers read speeds up to 180MB/s using SanDisk QuickFlow Technology and write speeds up to 130MB/s. The card carries UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings for sustained 4K UHD recording. Performance requires compatible host devices.

Upgrade from slower UHS-I cards

This card replaces standard UHS-I media limited to the 104MB/s bus speed, pushing read and write rates beyond that ceiling with proprietary engineering. The jump is worth it when your workflow involves frequent 4K UHD video capture or rapid transfer of large image batches. QuickFlow Technology is only available on 64GB, 128GB, 256GB, and 512GB capacities. Maximum speeds require a compatible reader such as the SanDisk Professional PRO-READER.

Suits 4K UHD creators needing sustained write

Creators shooting high-resolution 4K UHD video benefit from the V30 sustained capture rate of 30MB/s and shot speeds up to 130MB/s. Buyers who need more storage than 512GB or who require faster bus interfaces such as UHS-II should look at alternative card types. Users without QuickFlow-compatible readers will not reach the advertised offload speeds.