We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • TypemicroSDXC
  • Capacity128GB
  • Speed Class RatingClass 10
  • 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.

Highlights

  • 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

Specifications

BrandSanDisk
TypemicroSDXC
Capacity128GB
Speed Class RatingClass 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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.