If you’ve been waiting for a V30 A2 class card, Amazon’s price drop on this 400GB SanDisk Extreme SDSQXA1-400G-GN6MA micro SDXC card makes this the one to get. V30 means a sustained video capture rate of at least 30MBps. A2 app performance at this size is for 4000 read IOPS, 2000 write IOPS. Card itself is rated for up to 160 MBps read speeds, and up to 90 MBps write speeds.

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More Info:

Video Quality
Capture uninterrupted 4K UHD and Full HD video without skipping frames

Move Files Fast
10X faster than with USB 2.0 readers⁸ with the performance of USB 3.0

Capture Hi-res video Fast
Capture uninterrupted 4K UHD video anytime anywhere

Read Speed
Up to 160MB/s* means shorter wait times when transferring files

Read Speed
Up to 160MB/s⁹ so you can move big files (or a lot of files) fast

Write Speed
Up to 90MB/s* enables you to capture fast action in full detail

Compact & Durable
Take it anywhere—built to hold its own when tossed in your bag

Performance Rating
Record and shoot faster with C10, U3, and V30, and load apps faster with A2

USB 3.0-Compatible
The reader is compatible with USB 3.0 and backwards-compatible with USB 2.0