SanDisk 256GB Extreme microSD UHS I Card for 4K Video on Smartphones, Action Cams & Drones 190MB/s Read, 130MB/s Write SDSQXAV 256G GN6MN, Red/Gold

by SanDisk

4.8★ · 15,011 Amazon ratings as of Jul 8, 2026

• With SanDisk QuickFlow Technology10 (64GB - 1TB), this card optimizes performance for timesaving media offloads with quick read speeds up to 190MB/s.9 Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately).
• Capture fast-action photos or shoot 4K UHD video2 with write speeds of up to 130MB/s.9The SanDisk Extreme microSDXC UHS-I Card lets you shoot more and faster.
• Ideal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. With up to 1TB1, the SanDisk Extreme microSD UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings.5
• Get faster app performance for an outstanding smartphone experience thanks to the SanDisk Extreme microSD card’s A27Specification.
• SanDisk Extreme microSDHC and microSDXC UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof,4 so you can enjoy your adventures without worrying about the durability of your memory card.