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Small red and black microSDXC card with full-size SD adapter

SanDisk

SanDisk Extreme 128GB microSDXC 190/90MB/s U3 V30 A2

SKU CH-J4Y4-KD94T

High-capacity microSDXC card delivering 190 MB/s read and 90 MB/s write speeds for 4K capture and fast app loading

  • Total capacity128 GB
  • Speed classClass 10
  • Product typeMicroSDXC
  • 128 GB capacity stores hours of 4K footage
  • 190 MB/s read speed transfers large files quickly
  • 90 MB/s write speed captures high-bitrate video smoothly
  • U3 V30 A2 ratings guarantee sustained performance for apps and recording

Capacity and class

This 128GB microSDXC card carries a Class 10 speed rating with UHS-I U3 and V30 markings. It is built for devices that need sustained write performance such as action cameras, drones and 4K video recorders. The bundled adapter lets it fit full-size SD slots.

Read and write headroom

Sequential reads reach 190 MB/s while writes hold at 90 MB/s, giving enough bandwidth for 4K capture and fast offloads. The A2 rating helps with app loading on compatible phones and tablets. Buyers who need more storage or higher write speeds for professional codecs will need a larger or faster card.

How it compares

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

Price $36.99
Cheaper than about 58% of the 1,947 comparable items (median $46.99).
Total capacity 128 GB
Higher than about 60% of the 1,132 comparable items (median 64 GB).
Price per TB $288.98 per TB
Cheaper than about 62% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classClass 10

Questions about this item

Will the 190 MB/s read speed work with my older UHS-I card reader?

Yes, the card uses the UHS-I interface so it will operate at the reader's maximum supported speed.

How can I verify the 90 MB/s write speed after setup?

Run a sequential write benchmark such as CrystalDiskMark; sustained results near 90 MB/s confirm the V30 rating is being met.

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