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Small white microSDXC card with included adapter

SanDisk

SanDisk High Endurance microSDXC 256GB UHS-I U3 V30 100/40MB/s

SKU CH-GEKJ-R91CV

High-endurance microSDXC card rated V30 and U3 for continuous 256 GB video recording at up to 100 MB/s read and 40 MB/s write, with Class 10 speed, UHS-I bus.

  • Product typeMicroSDXC
  • Built for continuous video recording with high endurance design
  • Read speeds up to 100MB/s and write speeds up to 40MB/s for smooth capture
  • UHS-I U3 V30 Class 10 ratings support Full HD and 4K recording
  • Withstands temperatures from -13°F to 185°F for use in harsh environments
  • Water, shock and X-ray resistant plus included adapter for versatile device compatibility

256GB High Endurance microSDXC

This SanDisk microSDXC card provides 256GB of storage for continuous video recording. It is built for dash cams and home monitoring systems that write footage day after day. The card uses the UHS-I bus interface and includes a standard SD adapter for broader device compatibility.

V30 sustained write speed

A minimum sequential write speed of 30MB/s and a maximum of 40MB/s ensure smooth Full HD and 4K capture without dropped frames. Read speeds reach 100MB/s for quick file transfers. The Class 10 and U3 ratings guarantee the sustained performance required by high-bitrate recording.

For always-on cameras, not burst photography

Ideal for drivers and homeowners needing reliable loop recording in harsh environments. The card operates from -13°F to 185°F and resists water, shock, and X-rays. Photographers who prioritise rapid burst shooting or maximum read throughput should look at cards with higher speed ratings.

How it compares

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

Price $83.99
Pricier than about 68% of the 1,947 comparable items (median $46.99).

Specifications

Product
Product typeMicroSDXC

Questions about this item

How does the 100 MB/s read speed affect dash-cam playback?

The 100 MB/s read speed lets you copy 256 GB of footage to a PC or viewer quickly, but sustained write speed of 40 MB/s is what keeps dash-cam recording smooth.

What does the UHS-I U3 V30 rating guarantee in daily use?

UHS-I U3 V30 certifies a minimum 30 MB/s sequential write, so 1080p and 4K video streams write without dropped frames.

Will the bundled adapter let me use this card in a full-size SD slot?

Yes, the included adapter converts the microSDXC card to standard SD dimensions for cameras, laptops or card readers with full-size slots.

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