We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small rectangular microSD card, red and grey front, gold contacts visible

SanDisk

SanDisk Ultra microSDXC 128GB A1 UHS-I/U1 Class 10 SDSQUA4-128G-GN6FA memory card

SKU CH-99BN-45KZ8 MPN SDSQUA4-128G-GN6FA

128 GB microSDXC card with up to 120 MB/s read speed, A1-rated for faster Android apps, and tested for Chromebook compatibility

  • Total capacity128 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 128GB

  • Tested and certified for Chromebook compatibility
  • Up to 120MB/s read speed moves files fast
  • A1 rating loads Android apps quicker
  • Class 10 supports Full HD video playback
  • Waterproof, temperature-proof, X-ray-proof, magnet-proof, shock-proof durability

Chromebook-Ready microSDXC Card

The SanDisk Ultra microSDXC 128GB card carries UHS-I, U1, Class 10 and A1 ratings. It is tested and certified to work seamlessly with Chromebooks, making it a straightforward storage upgrade for those devices. Read speeds reach up to 120MB/s for moving photos and files quickly. The A1 rating helps Android apps launch and run faster on compatible hardware.

For Chromebook Users and Basic Media

This card suits Chromebook owners who need more space for documents, photos and Full HD video playback. Android app performance benefits from the A1 classification. Buyers who require sustained write speeds beyond the U1 minimum for high-bitrate recording workflows should look at a different card class. The 128GB capacity also limits users building large local media libraries.

UHS-I U1 Speed Class Decides Fit

The single specification that determines suitability is the UHS-I U1 speed class, which guarantees a minimum sequential write of 10MB/s. This supports Full HD video recording and smooth app operation but does not meet the demands of 4K capture or professional burst photography. Match this rating to your device requirements before purchasing.

How it compares

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

Price $18.99
Cheaper than about 80% 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 $148.36 per TB
Cheaper than about 91% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUA4-128G-GN6FA
Total capacity128 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

Does the microSDXC card fit a standard microSD slot on a Chromebook?

Yes, the card uses the microSDXC form factor and is tested and certified to work seamlessly with Chromebooks.

What is the common mistake when inserting this microSD card?

Inserting the card upside down or not pushing until it clicks into the spring-loaded slot.

When should the card be replaced if used for Android apps?

Replace it if app launch times slow noticeably or if read speeds drop well below the rated 120MB/s.

More in SD & MicroSD Memory Cards

Similar items