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Small red microSDXC card with SanDisk Ultra branding

SanDisk

SanDisk Ultra microSDXC 128GB 140MB/s Class 10 A1

SKU CH-80KC-0RV2T

A 128 GB microSDXC card with up to 140 MB/s read speed, Class 10 and A1 rating for Full HD video and faster app loading on Android devices

  • Total capacity128 GB
  • Memory card formatMicroSD
  • Speed classClass 10
  • Max read speedup to 140 MB/s
  • Write throughput140 MB/s
  • Product typeMicroSDXC
  • 128 GB capacity stores hours of Full HD video
  • Up to 140 MB/s read speed moves files quickly
  • Class 10 rating enables smooth Full HD recording
  • A1 rating loads apps faster on Android
  • microSDXC form factor fits phones and tablets

128GB microSDXC card for Android devices

The SanDisk Ultra microSDXC card delivers 128GB of storage with read speeds up to 140 MB/s. Its Class 10 rating supports Full HD video recording and the A1 specification enables faster app loading on compatible smartphones and tablets.

Ideal for expanding phone storage and media capture

This card suits Android users who want more space for photos, videos, music and apps with quicker launch times. It is not suited for buyers who require higher sustained write performance for 4K recording or professional camera workflows.

Class 10 and A1 ratings define the use case

The Class 10 speed class guarantees minimum write performance for Full HD video while the A1 rating certifies random read and write speeds for app operations. These two specifications determine whether the card matches your device and workload requirements.

How it compares

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

Price $31.99
Cheaper than about 63% 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 $249.92 per TB
Cheaper than about 70% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUAB-128G-GN6MN
Part numberSDSQUAB-128G-GN6MN
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classClass 10
Max read speedup to 140 MB/s
Write throughput140 MB/s
Storage
Memory card formatMicroSD

Questions about this item

Does my phone need a microSDXC slot to use this 128GB card?

Yes, the host device must support the microSDXC standard to recognise the full 128GB capacity.

Will this card work in a device that only reads Class 4 cards?

The card is rated Class 10 and will operate at the host's maximum supported speed, so it functions in older slots but at their lower rate.

How can I confirm the card is delivering its rated 140MB/s read speed?

Run a benchmark tool such as CrystalDiskMark or the SanDisk Memory Zone app; sequential read results should approach 140 MB/s on a UHS-I interface.

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