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SanDisk Extreme PRO microSDXC 256GB card with adapter

SanDisk

SanDisk Extreme PRO microSDXC 256GB 170MB/s 90MB/s V30 A2 U3 Class 10 memory card

SKU CH-RZ0B-C66ZX

High-capacity 256GB microSDXC card reads at 170MB/s and writes at 90MB/s for 4K UHD recording

  • Total capacity256 GB
  • Memory card formatSDXC
  • Speed classClass 10
  • Max read speed170 MB/s
  • Write throughput2x
  • Product typeSDXC
  • Fast app launches with A2-rated performance
  • 4K UHD video capture at up to 90MB/s write speed
  • Quick file transfers with up to 170MB/s read speed
  • Ample 256GB capacity for photos and footage
  • Built to endure temperature, water, X-ray and drops

High-capacity microSDXC card for 4K capture

The SanDisk Extreme PRO microSDXC card delivers 256 GB of storage with read speeds up to 170 MB/s and write speeds up to 90 MB/s. It carries UHS-I U3, V30 and A2 ratings for sustained 4K UHD video recording and fast app loading on Android devices. An SD adapter is included for broader device compatibility.

Check host device slot and speed class support

Verify that your smartphone, action camera or drone accepts microSDXC cards up to 256 GB and can utilise UHS-I speeds. The card requires a host that supports the U3 and V30 speed classes to guarantee minimum write performance for 4K footage. Older hardware limited to SDHC or lower speed classes will not achieve the rated throughput.

Rugged proofing and daily handling

The card is temperature proof, water proof, X-ray proof and drop proof, protecting data during outdoor shoots and travel. Its compact microSD form factor fits directly into action cameras and drones without adapters, while the bundled SD adapter allows quick offload to laptops or card readers. No moving parts mean silent, reliable operation in vibration-prone environments.

How it compares

Measured against everything we stock in SD & MicroSD Memory Cards, at today’s prices. Recalculated every night.

Price $70.99
Pricier than about 62% of the 1,947 comparable items (median $46.99).
Total capacity 256 GB
Higher than about 80% of the 1,132 comparable items (median 64 GB).
Price per TB $277.30 per TB
Cheaper than about 64% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product line256 GB
Model nameSDSQXCZ-256G-GN6MA
Part numberSDSQXCZ-256G-GN6MA
Total capacity256 GB
Product typeSDXC
Performance
Speed classClass 10
Max read speed170 MB/s
Write throughput2x
Storage
Memory card formatSDXC

Questions about this item

Does the card ship with an SD adapter or do I need to buy one separately?

The card includes an SD adapter in the box so it can be used in full-size SD slots without an extra purchase.

Should I choose the 256 GB version or a different capacity for 4K UHD video?

The 256 GB capacity provides ample space for 4K UHD recording and is the capacity specified for this model.

What does the 170 MB/s read speed mean when I am copying files to my computer?

The 170 MB/s read speed allows large 4K video files and high-resolution photos to transfer to a computer in less time.

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