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Small red microSDXC card with SD adapter

WDT

WDT SanDisk Extreme microSDXC 128GB 160MB/s UHS-I U3

SKU CH-2FKT-61J9M

A 128 GB microSDXC card with up to 160 MB/s read and 90 MB/s write speeds for 4K UHD video and fast app performance, supplied with an SD adapter

  • Total capacity128 MB
  • Memory card formatMicroSD
  • Speed classUHS Speed Class 1
  • Max read speedUp to 160 MB/s
  • Write throughputUp to 90 MB/s
  • VariantWith Adapter
  • Capture 4K UHD smoothly with write speeds up to 90MB/s
  • Transfer files fast at read speeds up to 160MB/s
  • Run apps quickly thanks to A2-rated performance
  • Works with drones, action cams and Android phones
  • Includes SD adapter for use in full-size slots

128 GB microSDXC for 4K capture

This SanDisk Extreme microSDXC card provides 128 GB of storage for Android smartphones, action cameras and drones. It supports 4K UHD video recording, full HD video and high-resolution photos. The A2 rating delivers faster application loading on compatible mobile devices.

UHS-I U3 speeds up to 160 MB/s read

Sequential read performance reaches up to 160 MB/s while write speeds hit up to 90 MB/s under the UHS Speed Class 3 specification. The Class 10 rating guarantees a minimum sustained write speed for continuous recording. These speeds reduce buffer clearing time and accelerate file offloads.

Includes full-size SD adapter

The package supplies a standard SD adapter so the microSDXC card fits full-size card slots in readers, laptops or cameras. No additional software or drivers are bundled with the card. The adapter extends device compatibility without affecting the card’s rated performance.

How it compares

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

Price $44.99
Typical for this category: the median of 1,947 items is $46.99.
Total capacity 128 MB
Lower than about 99% of the 1,132 comparable items (median 64 GB).

Specifications

Product
Brand nameSanDisk
Model nameSDSQXA1-128G
Total capacity128 MB
Product typeMicroSDXC
Performance
Speed classUHS Speed Class 1
Max read speedUp to 160 MB/s
Write throughputUp to 90 MB/s
Storage
Memory card formatMicroSD
More details
VariantWith Adapter

Questions about this item

How do I install the microSDXC card and its SD adapter, and what step do people often get wrong?

Insert the 128 GB microSDXC card into the included SD adapter with the gold contacts facing down, then slide the adapter into your device's SD slot until it clicks; the common mistake is inserting the bare microSD card directly into a full-size SD slot.

What maintenance or replacement will this card need later?

No scheduled maintenance is required; the card carries a lifetime limited warranty, so replacement would only be necessary if the card fails or you need more than 128 GB of storage.

What limit appears first during sustained 4K UHD video recording?

The write speed ceiling of 90 MB/s is the first bottleneck; if your camera's bitrate exceeds that sustained rate, frames may drop even though the read speed reaches 160 MB/s.

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