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Tiny black microSDXC card with full-size SD adapter

SanDisk

SanDisk Extreme PRO 128GB microSDXC UHS-I U3 V30 A2 With Adapter

SKU CH-KC2P-4XS99

128GB microSDXC card delivers 170MB/s reads and 90MB/s writes for 4K UHD video and fast-action photos with U3 V30 A2 ratings

  • Total capacity128 GB
  • Memory card formatMicroSD
  • Speed classUHS-I / Class 10
  • Max read speed170 MB/S
  • Write throughput90mb/s
  • VariantWith Adapter

Capacity 128GB

  • Fast transfers with up to 170 MB/s read speed
  • Quick 4K video capture at up to 90 MB/s write speed
  • Smooth app performance thanks to A2 rating
  • Works in extreme heat from -25 °C to 85 °C
  • Includes SD adapter for wider device compatibility

Capacity and speed ratings

This 128GB microSDXC card carries UHS-I, Class 10, U3, V30 and A2 ratings for sustained write performance. It is built for smartphones, action cameras and drones that need reliable 4K video capture and fast app loading.

Device compatibility check

Verify that your host device supports the microSDXC format and UHS-I speeds before ordering. The card works with microSDHC, microSDXC, microSDHC UHS-I and microSDXC UHS-I slots, but not all devices accept the larger capacity or the UHS-I bus.

Upgrade path and value

The card replaces slower Class 10 or U1 cards that cannot sustain 4K recording or quick burst shooting. Read speeds up to 170MB/s and write speeds up to 90MB/s make the jump worthwhile when transferring large media libraries or recording high-bitrate footage.

How it compares

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

Price $51.99
Typical for this category: the median of 1,947 items is $46.99.
Total capacity 128 GB
Higher than about 60% of the 1,132 comparable items (median 64 GB).
Price per TB $406.17 per TB
Typical for this category: the median of 901 items is $374.69 per TB.

Specifications

Product
Brand nameSanDisk
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / Class 10
Max read speed170 MB/S
Write throughput90mb/s
Storage
Memory card formatMicroSD
More details
VariantWith Adapter

Other versions of this model

3 more in the same range

Questions about this item

Does the package include the microSDXC card and a full-size SD adapter, or must the adapter be bought separately?

The product is supplied with a full-size SD adapter included in the box, so no separate purchase is required.

Which capacity from the 64GB, 128GB, 256GB, 400GB, 512GB or 1TB range should I select for my device?

Choose the 128GB version if you need roughly 1000 high-resolution photos plus 30 minutes of 4K video (24GB) in a single card.

What does the 170MB/s read speed mean when I move files to my computer?

It lets you transfer 1000 high-resolution photos and 30 minutes of 4K video (24GB) in less than three minutes using a compatible UHS-I reader.

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