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Tiny black microSDXC card, 128GB capacity, no adapter included

SanDisk

SanDisk SDSQUA4-128G-GN6MN 128GB microSDXC UHS-I U1 A1 120MB/s memory card

SKU CH-NDTF-GSYHX

128 GB microSDXC card rated UHS-I U1 A1 for 120 MB/s reads and 40x write speed on Android devices

  • Total capacity128 GB
  • Memory card formatMicroSD
  • Speed classUHS-I / U1 / Class 10 / A1
  • Max read speed120 MB/s
  • Write throughput40x
  • VariantNo Adapter
  • 128 GB capacity stores hours of Full HD video
  • 120 MB/s read speed transfers large files quickly
  • UHS-I U1 Class 10 rating guarantees minimum 10 MB/s write performance
  • A1 specification loads apps faster on Android devices
  • MicroSDXC format fits smartphones tablets and action cameras

128GB microSDXC for Android devices

This SanDisk Ultra microSDXC card delivers 128GB of removable storage in the compact microSD form factor. It carries UHS-I, U1, Class 10 and A1 speed ratings for broad compatibility. The card is designed for Android smartphones and tablets needing expanded capacity for apps and media. No adapter is included in this package.

Sustained write performance for Full HD capture

The U1 and Class 10 ratings guarantee a minimum sequential write speed of 10MB/s during continuous recording. This ensures smooth Full HD video capture without dropped frames over long sessions. The A1 rating supports faster app loading and in-app performance on Android devices. Rated read speeds reach 120MB/s for quick file transfers.

Low power draw with silent solid-state operation

As a solid-state memory card with no moving parts, it operates silently and draws minimal power from the host device. The microSDXC format maintains broad compatibility with devices supporting the SDXC standard. Durability is inherent to the flash memory design for reliable everyday storage.

How it compares

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

Price $33.99
Cheaper than about 60% 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 $265.55 per TB
Cheaper than about 67% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUA4-128G-GN6MN
Part numberSDSQUA4-128G-GN6MN
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / U1 / Class 10 / A1
Max read speed120 MB/s
Write throughput40x
Storage
Memory card formatMicroSD
More details
VariantNo Adapter

Questions about this item

Does the 120MB/s read speed mean the card runs hotter or draws more power during long recording sessions?

The card has no moving parts and draws very little power, so it stays cool even during extended Full HD video capture.

My phone only takes microSDHC cards up to 32GB — will this 128GB microSDXC card work in it?

No, microSDXC cards require a device that explicitly supports the SDXC standard; older microSDHC-only phones cannot use 64GB or larger cards.

I still use a laptop with a standard SD slot — can I read this microSD card without buying a new reader?

Yes, a simple microSD-to-SD adapter lets the card fit any full-size SD slot, and the card itself works with standard SD interfaces.

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