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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

  • Total capacity128 GB
  • Memory card formatMicroSD
  • Speed classClass 10
  • Max read speed100 MB/s
  • Write throughput100
  • Product typeMicroSDXC
  • 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.

How it compares

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

Price $19.99
Cheaper than about 79% of the 1,947 comparable items (median $46.99).
Total capacity 128 GB
Higher than about 60% of the 1,132 comparable items (median 64 GB).
Price per TB $156.17 per TB
Cheaper than about 90% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Model nameSDSQUNR-128G-GN6MN
Part numberSDSQUNR-128G-GN6MN
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classClass 10
Max read speed100 MB/s
Write throughput100
Storage
Memory card formatMicroSD

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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