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Tiny rectangular microSDXC card, red and grey plastic finish

SanDisk

SanDisk SDSQUA4-064G-GN6FA 64GB microSDXC memory card

SKU CH-KTKJ-4FRGW MPN SDSQUA4-064G-GN6FA

A 64GB microSDXC card with up to 120MB/s read speed, UHS-I U1 Class 10 and A1 rating, tested and certified for Chromebooks

  • Total capacity64 GB
  • Speed classUHS-I / U1 / Class 10 / A1
  • Max read speedUp to 120 MB/s
  • Product typeMicroSDXC
  • Key featuresWorks With Chromebook The SanDisk Ultra microSD UHS-I card i

Capacity 64GB

  • Works with Chromebooks — tested and certified for seamless compatibility
  • Fast file transfers — read speeds up to 120MB/s
  • Quick Android app launches — A1-rated performance
  • Full HD video playback — Class 10 rating
  • Durable protection — waterproof, temperature-proof, X-ray-proof, magnet-proof, shock-proof

SanDisk Ultra 64GB microSDXC A1 card

This SanDisk Ultra microSDXC card provides 64GB of storage for Chromebooks and Android devices. It carries UHS-I, U1, Class 10 and A1 ratings with read speeds up to 120MB/s. The card is tested and certified to work seamlessly with Chromebooks. It suits users needing reliable expansion for apps and media.

Insert into microSD slot; no drivers required

Installation is straightforward: insert the card into a compatible microSD slot and the device recognises it automatically. No drivers or software are needed. The most common issue is using a device that does not support the microSDXC standard or the UHS-I bus, which prevents the card from functioning or reaching its rated speed. The card is waterproof, temperature-proof, X-ray-proof, magnet-proof and shock-proof for durability.

Ideal for Chromebook and Android app storage

This card suits students and professionals using Chromebooks who need extra space for Android apps, photos and Full HD video playback. The A1 rating helps apps launch faster. It is not for users who require capacities beyond 64GB or write speeds higher than the U1 class provides. Buyers needing 4K video recording or sustained high-bitrate capture should look at cards with higher speed class ratings.

How it compares

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

Price $11.99
Cheaper than about 92% of the 1,947 comparable items (median $46.99).
Total capacity 64 GB
Typical for this category: the median of 1,132 items is 64 GB.
Price per TB $187.34 per TB
Cheaper than about 84% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUA4-064G-GN6FA
Total capacity64 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / U1 / Class 10 / A1
Max read speedUp to 120 MB/s
Size & build
Shipping weight0.01 kg
Package size152 × 102 × 5 mm

Other versions of this model

2 more in the same range

Questions about this item

How can I verify the card is performing at the rated 120MB/s read speed after putting it in my Chromebook?

Copy a large file from the card to internal storage and check the transfer rate in the Chrome OS Files app; speeds approaching 120MB/s confirm the UHS-I interface is active.

Does the package include a full-size SD adapter or do I need to buy one separately for my laptop slot?

The supplied box contains only the 64GB microSDXC card; a microSD-to-SD adapter is not included and must be purchased separately if your device lacks a microSD slot.

Should I choose this 64GB A1 U1 card or a larger 256GB version for storing Android apps and Full HD video?

The 64GB model already carries the A1 rating for faster app loading and Class 10 for Full HD video; select 256GB only if you need more total space for media libraries.

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