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Small red microSDXC card with SD adapter

SanDisk

SanDisk Ultra microSDXC 128GB 120MB/s C10 U1 A1 memory card

SKU CH-9XEY-G9C8A

A 128GB microSDXC card with up to 120MB/s read speed, Class 10 and U1 ratings, and A1 app performance for phones, cameras and laptops

  • TypemicroSDXC
  • 128 GB capacity stores thousands of photos and Full HD videos
  • 120 MB/s read speed transfers large files quickly
  • Class 10 guarantees 10 MB/s minimum write for smooth recording
  • A1 rating loads Android apps faster
  • Includes adapter for use in SD card slots

Capacity and interface

The SanDisk Ultra microSDXC card provides 128GB of storage using a UHS-I interface. It is built for photographers and mobile users who need fast access to large files. Read speeds reach up to 120MB/s for quick transfers. The Class 10 rating guarantees a minimum write speed of 10MB/s.

Who this suits and who it does not

The A1 rating makes this card a good fit for Android smartphones and tablets that run apps directly from the memory. It also works well in cameras and laptops for Full HD video capture. Users who require sustained write speeds higher than 10MB/s for 4K recording should consider a different specification. Buyers needing capacities beyond 128GB will need another option.

Build integration

The card includes an adapter so it can be used in standard SD slots across cameras, laptops and card readers. Its microSDXC form factor fits directly into mobile devices without extra parts. The UHS-I bus keeps host requirements modest while still delivering the rated read performance. No external power or special drivers are needed.

Highlights

  • 128 GB capacity stores thousands of photos and Full HD videos
  • 120 MB/s read speed transfers large files quickly
  • Class 10 guarantees 10 MB/s minimum write for smooth recording
  • A1 rating loads Android apps faster
  • Includes adapter for use in SD card slots

Specifications

BrandSanDisk
TypemicroSDXC

Questions about this item

What device slot is required to use this 128GB microSDXC card?

The card fits any device with a microSDXC slot; a full-size SD adapter is included for readers that only accept standard SD cards.

Will the 120MB/s read speed work in a camera that only supports UHS-I Class 10?

Yes, the card is UHS-I Class 10 rated, so it will operate at the host device's maximum supported speed while maintaining the guaranteed 10MB/s minimum write performance.

How can I confirm the A1 rating is delivering faster app launches on my Android phone?

Move apps to the card in Settings, then open them — noticeably quicker launch times versus internal storage indicate the A1 random-read performance is active.

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