SanDisk Extreme PRO 200MB/s SDXC UHS-I V30 Memory Card

Overview
SanDisk Extreme PRO SDHC and SDXC UHS-I is an SD memory card for cameras that record 4K UHD video and high-resolution stills. It uses the UHS-I interface and carries UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings. Read speed is rated at up to 200 MB/s; write speed depends on the capacity and is listed below.

Speed by capacity
SanDisk rates read speed at up to 200 MB/s on the 64GB, 128GB, 256GB and 512GB cards. Write speed differs by capacity: SanDisk states up to 90 MB/s on the 64GB and 128GB cards, and up to 140 MB/s on the 256GB and 512GB cards. SanDisk notes that the 200 MB/s read speed uses proprietary technology to exceed the UHS-I 104 MB/s ceiling and requires a host device capable of reaching that speed, and that all figures come from internal testing and may be lower depending on the host device, interface and usage conditions.

Video and speed classes
The card carries UHS Speed Class 3 (U3) and Video Speed Class 30 (V30). SanDisk describes V30 as a sustained video capture rate of 30 MB/s with UHS-enabled host devices, and U3 as a rating designed to support 4K UHD video recording. SanDisk states that Full HD (1920 x 1080) and 4K UHD (3840 x 2160) video support may vary with the host device and file attributes.

Durability
SanDisk states the card is built to withstand weather, water and shock.

Physical and environmental
The card measures 2.17mm x 23.91mm x 31.92mm and weighs 1.67 g. SanDisk lists an operating temperature of -25 to 85 degrees C and a non-operating temperature of -40 to 85 degrees C. Listed certifications are CE, FCC, C-Tick/RCM, UKCA, EAC and ICES.

Compatibility
The card fits a standard SD card slot and uses the UHS-I interface, so it also works in older SD host devices at their own speeds. SanDisk notes that not all devices support SDXC and advises checking with the device manufacturer. SanDisk states that QuickFlow technology is available on the 64GB, 128GB, 256GB, 512GB and 1TB capacities. To read the card at its rated speed on a computer, a UHS-I capable reader is needed, such as the SanDisk ImageMate PRO USB-C multi-card reader.

Capacities and model numbers
This listing covers four capacities, sold under SanDisk model numbers SDSDXXU-064G-GN4IN (64GB), SDSDXXD-128G-GN4IN (128GB), SDSDXXD-256G-GN4IN (256GB) and SDSDXXD-512G-GN4IN (512GB).