Flash Memory SanDisk Extreme PRO 256GB UHS-II SDSDXDM-256G-GN4IN

The SanDisk Extreme PRO 256GB UHS-II SDXC card delivers high-capacity, high-performance removable storage for professional photo and video workflows. With 256 GB capacity and UHS-II interface, it supports sustained high-speed transfers for large RAW files and long 4K video clips. The card is engineered for durability with resistance to dust and mechanical shock, and its black design fits standard SD card slots in cameras, card readers, and computers.

Advantages

This SanDisk Extreme PRO card provides fast read and write throughput up to 300 MB/s, enabling rapid file offload and responsive camera operation. It meets UHS Speed Class 3 (U3) and Video Speed Class V90 requirements, supporting high-bitrate 4K and multi-stream recording. Robust construction reduces the risk of data loss from everyday handling, while the SDXC form factor ensures broad compatibility with modern devices that accept UHS-II cards.

Suitable for

• Professional photography with continuous burst shooting and large RAW files
• 4K and high-bitrate video recording, including multicamera setups
• On-location shoots requiring fast offload and backup
• Videographers and content creators using UHS-II compatible cameras and recorders

Key specifications

• Capacity: 256 GB
• Card type: SDXC (UHS-II)
• Read speed: up to 300 MB/s
• Write speed: up to 300 MB/s
• Speed classes: UHS Speed Class 3 (U3), Video Speed Class V90, Class 10
• Color: Black
• Weight: approximately 0.0017 kg

How to use

Insert the card into a UHS-II compatible SD card slot on your camera, recorder, or card reader. Format the card in the host device before first use to ensure optimal file system compatibility and performance. During recording, monitor available capacity and card health using your device menus; transfer files to a computer or backup storage using a UHS-II capable card reader for maximum transfer speeds.

Recommendations

For reliable 4K or high-bitrate recording, pair this UHS-II card with cameras and recorders that explicitly support UHS-II and V90 standards. Regularly back up content to separate storage and avoid removing the card during active read/write operations to prevent data corruption.