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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

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity128GB
  • Speed Class RatingUHS-I / Class 10
  • Read Speed170MB/S
  • Write Speed90mb/s

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.

Highlights

  • 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

Specifications

BrandSanDisk
Card typeMicroSD
TypemicroSDXC
Capacity128GB
Speed Class RatingUHS-I / Class 10
Read Speed170MB/S
Write Speed90mb/s
Features0.59in x .043in x .04in (14.99mm x 10.92mm x 1.02mm)
OptionWith Adapter

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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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