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Small red microSD card with full-size SD adapter

SanDisk

SanDisk Ultra 128GB microSDXC A1 UHS-I/U1 Class 10 120MB/s SDSQUA4-128G-GN6MA

SKU CH-MKCY-0ZZHA MPN SDSQUA4-128G-GN6MA

128GB microSDXC card with up to 120MB/s read speed, A1 app performance and Class 10 Full HD video support

  • Total capacity128 GB
  • Speed classUHS-I / U1 / Class 10 / A1
  • Max read speed120 MB/s
  • Product typeMicroSDXC
  • Key featuresIdeal for Android Smartphones and Tablets SanDisk cards are

Capacity 128GB

  • Up to 120MB/s read speed moves up to 1000 photos per minute
  • A1-rated performance loads apps faster on Android smartphones and tablets
  • Class 10 UHS-I U1 supports Full HD video recording and playback
  • Water, temperature, X-ray, magnet and shock proof protection for durable storage
  • Includes adapter for use with microSDXC and standard SD card slots

What the card does and who buys it

This 128GB microSDXC card carries UHS-I, U1, Class 10 and A1 ratings. It is built for Android smartphones and tablets that need extra space for apps, photos and Full HD video. The bundled adapter lets you read the card in a standard SD slot.

Installation and common issues

Insert the card into the device slot until it clicks, then format it in the device settings before first use. The most common problem is buying a card whose speed class the host cannot use, so check that your phone or tablet supports UHS-I and A1 performance.

The specification that decides fit

The A1 rating guarantees a minimum random read and write speed for app loading. If your device only needs sequential throughput for media, a card without A1 will work, but app-heavy workloads require this rating.

How it compares

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

Price $15.99
Cheaper than about 86% 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 $124.92 per TB
Cheaper than about 93% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUA4-128G-GN6MA
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / U1 / Class 10 / A1
Max read speed120 MB/s
Size & build
Shipping weight0.01 kg
Package size152 × 102 × 5 mm

Other versions of this model

3 more in the same range

Questions about this item

How can I verify the card delivers the 120MB/s read speed after inserting it into my Android phone?

Run a storage benchmark app such as A1 SD Bench; sequential read results should approach 120MB/s on a UHS-I device, confirming the card is performing to spec.

Does the SDSQUA4-128G-GN6MA package include the microSD-to-SD adapter, or must I buy it separately?

The supplier title lists the card with adapter, so the full-size SD adapter is included in the box; no separate purchase is needed.

Should I choose the 128GB A1 U1 version or a 16GB Class 10 card for loading Android apps faster?

The 128GB model carries the A1 rating for faster app launch and offers 120MB/s read speed, while the 16GB variant is rated at 98MB/s and lacks the A1 designation.

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