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Small red microSDXC card with gold contacts, no adapter included

SanDisk

SanDisk Ultra microSDXC 128GB 80MB/s Class 10 U1 A1 No Adapter

SKU CH-TA3X-Z1KPC

Stores 128GB with up to 80MB/s transfer speeds and A1 app performance for Full HD video

  • Card typeMicroSD
  • TypeFlash Memory
  • Capacity128GB
  • Speed Class RatingClass 10
  • OptionNo Adapter
  • 128 GB capacity stores hours of Full HD video
  • Up to 80 MB/s read speed moves large files quickly
  • A1 rating launches apps faster on mobile devices
  • U1 and Class 10 sustain smooth Full HD recording
  • No adapter included keeps the package compact

128GB microSDXC for everyday storage

The SanDisk Ultra microSDXC card provides 128GB of flash memory for phones, tablets and other compatible host devices. It carries Class 10 and UHS Speed Class U1 ratings, supporting Full HD video recording and playback. A1 performance class helps load installed applications faster. The card is sold without an adapter.

Suits users needing affordable mobile capacity

This card suits anyone expanding storage on a device that accepts microSDXC media and wants reliable Full HD video capture. Buyers who require sustained write speeds for 4K or higher-resolution recording should consider a card with a Video Speed Class rating. Devices limited to the older microSDHC standard cannot use this 128GB card.

80MB/s maximum transfer speed

The headline specification is a read speed of up to 80MB/s, which determines how quickly files can be moved off the card. Write performance is governed by the Class 10 and U1 minimums, guaranteeing at least 10MB/s sustained throughput for video streams. Match this speed to your device and workflow to confirm suitability.

Highlights

  • 128 GB capacity stores hours of Full HD video
  • Up to 80 MB/s read speed moves large files quickly
  • A1 rating launches apps faster on mobile devices
  • U1 and Class 10 sustain smooth Full HD recording
  • No adapter included keeps the package compact

Specifications

BrandSanDisk
Card typeMicroSD
SeriesUltra
ModelSDSQUNR-128G-GN6MN
TypeFlash Memory
Capacity128GB
Speed Class RatingClass 10
OptionNo Adapter

Questions about this item

How does the UHS Speed Class U1 rating affect sustained write performance?

The U1 rating guarantees a minimum sequential write speed of 10MB/s, which is the limiting factor during continuous Full HD video recording or large file transfers.

Does the card run hot or draw noticeable power during all-day use in a dash cam?

MicroSD cards consume very little power and generate minimal heat; the Ultra series is designed for continuous Full HD recording without thermal throttling.

What host device specifications are required for this microSDXC card to function?

The device must explicitly support the microSDXC standard; microSDHC-only slots will not recognise the 128GB capacity.

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