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Small black microSD card with full-size SD adapter

ADATA

ADATA AUSDX256GUICL10A1-RA 256GB microSDXC UHS-I Class 10 V10 A1 memory card

SKU CH-QZY9-CE4G0 MPN AUSDX256GUICL10A1-RA

256 GB microSDXC card with UHS-I Class 10, V10 and A1 ratings, read speeds up to 100 MB/s and included SD adapter

  • Total capacity256 GB
  • Speed classUHS-I / U1 / Class 10 / A1 / V10
  • Max read speedUp to 100 MB/s
  • Write throughputUp to 25 MB/s
  • Product typeMicroSDXC
  • Key featuresUHS-I Class 10 data speed - supports Full HD 1080P video rec

Capacity 256GB

  • Read up to 100MB/s for fast file transfers
  • A1 app performance class speeds up app loading
  • V10 video class sustains 10MB/s Full HD recording
  • Includes SD adapter for use in cameras and drones
  • 256GB capacity stores thousands of photos and videos

Ideal for mobile devices and cameras

This 256GB microSDXC card targets smartphone, tablet, drone and action-camera users who need extra space for apps and Full HD 1080 footage. The A1 rating means installed applications launch and run more smoothly directly from the card. An SD adapter is included for use in larger slots.

UHS-I bus caps real-world throughput

The UHS-I interface limits maximum sequential read performance to 100MB/s and write performance to 25MB/s. Actual transfer rates will vary with the host device, card capacity and file sizes, so sustained speeds may fall below the peak figures. The V10 class guarantees a minimum 10MB/s video write stream.

256GB capacity sets the storage ceiling

This single card provides 256GB of non-volatile storage and cannot be expanded further. Buyers who need more space must purchase additional cards. The physical microSDXC form factor fits only devices that explicitly support the microSDXC standard.

How it compares

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

Price $16.99
Cheaper than about 84% 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 $66.37 per TB
Cheaper than about 98% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameADATA
Product linePremier
Model nameAUSDX256GUICL10A1-RA1
Total capacity256 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / U1 / Class 10 / A1 / V10
Max read speedUp to 100 MB/s
Write throughputUp to 25 MB/s
Size & build
Shipping weight0.01 kg
Package size128 × 83 × 6 mm

Other versions of this model

3 more in the same range

Questions about this item

Should I choose the 256GB version or a smaller capacity like 128GB or 64GB?

The 256GB card stores more apps, photos and Full HD 1080P footage; pick a lower capacity only if you need less space or want a lower upfront cost.

What does the 100 MB/s read speed mean when I use the card in my phone or camera?

You can copy large files to a computer at up to 100 MB/s, while the 25 MB/s write speed sustains Full HD 1080P recording and A1 app loading.

How does the UHS-I Class 10 V10 rating limit real-world performance?

UHS-I Class 10 guarantees a minimum 10 MB/s sequential write, and V10 certifies the same floor for video, so sustained capture never drops below that threshold.

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