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Small red microSDXC card with adapter on white background

SanDisk

SanDisk SDSQUAC-256G-GN6MA 256GB microSDXC Ultra A1 UHS-I/U1 Class 10 memory card

SKU CH-GFKR-WERF2 MPN SDSQUAC-256G-GN6MA

256 GB microSDXC card rated UHS-I U1, Class 10 and A1 for up to 150 MB/s read speeds and faster app loading

  • Total capacity256 GB
  • Memory card formatMicroSD
  • Speed classUHS-I / U1 / Class 10 / A1
  • Max read speed150 MB/s
  • Product typeMicroSDXC

Capacity 256GB

Model 1-Pack

  • Load apps faster with A1-rated performance
  • Up to 150MB/s transfer speeds move up to 1000 photos per minute
  • 256GB capacity stores extensive media libraries
  • Class 10 rating supports Full HD video recording
  • Includes adapter for broad device compatibility

256GB microSDXC Ultra A1 U1

This SanDisk Ultra microSDXC card delivers 256GB of storage for Android smartphones and tablets. It carries UHS-I, U1, Class 10 and A1 ratings for broad device compatibility. The A1 specification allows apps to load directly from the card. An SD adapter is included for use in full-size slots.

Transfer speed up to 150MB/s

Read speeds reach 150MB/s, enabling the transfer of up to 1000 photos per minute. Class 10 performance sustains the write throughput required for Full HD video recording. UHS-I bus operation keeps power draw low during continuous capture. The card runs silently with no moving parts.

Works with USB 3.0 readers and SD slots

The bundled adapter lets the card fit standard SD card slots in laptops and cameras. It is compatible with the SanDisk MobileMate USB 3.0 microSD card reader for fast offloads. A1 rating frees internal phone storage by hosting apps on the card. No external power or drivers are required.

How it compares

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

Price $77.99
Pricier than about 65% of the 1,947 comparable items (median $46.99).
Total capacity 256 GB
Higher than about 80% of the 1,132 comparable items (median 64 GB).
Price per TB $304.65 per TB
Cheaper than about 59% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUAC-256G-GN6MA
Total capacity256 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / U1 / Class 10 / A1
Max read speed150 MB/s
Storage
Memory card formatMicroSD
Size & build
Shipping weight0.01 kg
Package size173 × 107 × 5 mm

Other versions of this model

5 more in the same range

Questions about this item

How do I install the SanDisk SDSQUAC-256G-GN6MA microSDXC card and what step is often missed?

Insert the 256GB microSDXC card into your device's slot until it clicks; the step many miss is formatting the card in the device before first use to ensure the A1-rated file system is correctly initialised.

What maintenance or replacement will the SanDisk Ultra 256GB microSDXC need over time?

No scheduled maintenance is required; replace the card if sustained write speeds drop below the Class 10 minimum or if the host device reports read errors after heavy app loading cycles.

What limit appears first on the SanDisk SDSQUAC-256G-GN6MA during sustained Full HD video recording?

The U1 rating guarantees a 10MB/s minimum sequential write speed; this floor is the first bottleneck during continuous Full HD capture, well below the 150MB/s peak read figure.

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