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Tiny black microSDXC card with gold contacts and SanDisk branding

SanDisk

SanDisk SDSQUNR-128G-GN6MN DCM 128GB microSDXC memory card

SKU CH-VFWS-9EQ1A

A 128 GB microSDXC card with Class 10 speed and 100 MB/s read performance for phones, cameras and portable devices

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity128GB
  • Speed Class RatingClass 10
  • Read Speed100 megabytes_per_second
  • Write Speed100
  • 128 GB capacity stores hours of 4K footage
  • Class 10 rating guarantees 10 MB/s minimum write speed
  • 100 MB/s read speed transfers large files quickly
  • microSDXC format fits phones, drones and action cameras
  • No moving parts resists shock and vibration in mobile use

128GB microSDXC card for everyday storage

The SanDisk SDSQUNR-128G-GN6MN provides 128GB of removable storage in the microSDXC form factor. It carries a Class 10 speed rating with a maximum read speed of 100 megabytes per second. The card is designed for devices that accept microSDXC media.

Suits phones, action cameras

This capacity works well for users capturing Full HD video, burst photos or large app libraries on compatible handheld devices. Buyers whose hardware only supports the older microSD or microSDHC standards will not be able to use this card. Devices limited to 32GB maximum capacity should look at smaller cards.

Steady write performance for continuous recording

Class 10 guarantees a minimum sustained write speed of 10 megabytes per second during long captures. The 100MB/s read figure represents a peak burst rate, not a continuous throughput. Under heavy sustained load the card maintains the Class 10 floor rather than the advertised maximum.

Highlights

  • 128 GB capacity stores hours of 4K footage
  • Class 10 rating guarantees 10 MB/s minimum write speed
  • 100 MB/s read speed transfers large files quickly
  • microSDXC format fits phones, drones and action cameras
  • No moving parts resists shock and vibration in mobile use

Specifications

BrandSanDisk
Card typeMicroSD
ModelSDSQUNR-128G-GN6MN
Part NumberSDSQUNR-128G-GN6MN
TypemicroSDXC
Capacity128GB
Speed Class RatingClass 10
Read Speed100 megabytes_per_second
Write Speed100

Questions about this item

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

Yes, the card follows the microSDXC format, so the host must explicitly support microSDXC; older microSD or microSDHC-only devices will not recognise it.

Will this Class 10 card work in a camera that only specifies Class 4?

The card meets Class 10 minimums and is backward compatible with Class 4 hosts, though sustained write speed will be limited to the camera's slower specification.

How can I confirm the card delivers its rated 100 MB/s read speed after installation?

Run a sequential-read benchmark such as CrystalDiskMark or ATTO on a UHS-I reader; a result near 100 MB/s indicates the card and interface are performing as specified.

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