Product Overview:
Capacity: 256 GB SDXC
Interface: UHS‑I (single row of pins)
Label Ratings: Class 10 / U3 (UHS Speed Class 3) / V30 (Video Speed Class)
Max Read Speed: Up to 200 MB/s, achieved via SanDisk’s QuickFlow® technology
Max Write Speed: Up to 140 MB/s for 256 GB and larger capacities cameramemoryspeed.com
Minimum Write Speed: Guaranteed 30 MB/s sustained, ideal for 4K video capture documents.
Performance & Usage
4K Video & Burst Photography: With video‑speed class V30 and sustained write performance, this card supports uninterrupted 4K UHD recording and high-speed burst stills
Quicker Offloads: The 200 MB/s read speed makes transferring large files faster—helpful with modern UHS-I readers.
Who Is This Card For?
Professional photographers/videographers capturing 4K video, RAW/Burst stills.
Users needing lots of storage and fast transfer performance.
Anyone working in rugged or varying environments—this card is built to withstand harsh conditions.
Users processing large datasets or editing on the go.
The SanDisk 256 GB Extreme PRO UHS-I SDXC card is an excellent choice for high-speed, high-capacity professional use—particularly for 4K video or burst photography.