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Tiny black microSDXC card with gold contacts and SanDisk Ultra branding

SanDisk

SanDisk SDSQUA4-512G-GN6MN Ultra 512GB microSDXC 120MB/s U1 A1 No Adapter memory card

SKU CH-MR83-0572T

Stores 512 GB of Full HD video and apps on Android devices with 120 MB/s read speed and A1 app performance

  • Total capacity512 GB
  • Memory card formatMicroSD
  • Speed classUHS-I / U1 / Class 10 / A1
  • Max read speed120 MB/s
  • Write throughput120mb/s
  • VariantNo Adapter
  • 512GB capacity stores hours of Full HD video
  • 120MB/s read speed transfers files quickly
  • U1 and Class 10 ratings guarantee minimum write performance
  • A1 rating loads apps faster on Android
  • No adapter included for direct microSD slot use

Capacity & Class

The SanDisk Ultra microSDXC card provides 512GB of storage in the microSDXC form factor. It carries UHS-I, U1, Class 10 and A1 ratings for broad device support. The card targets Android smartphone and tablet users who need extra space for apps and media. Buyers whose devices only accept the older microSDHC format cannot use this card.

Installation Notes

The card inserts directly into any microSDXC-compatible slot without tools or drivers. No adapter is included, so a separate adapter is required for full-size SD slots. Write speed is listed as 120mb/s in the specifications; verify whether this value refers to megabytes or megabits per second before planning sustained recording workflows.

Everyday Headroom

Read speeds reach 120MB/s, allowing quick transfer of Full HD footage and large photo libraries. The A1 rating means the card can run Android apps directly with acceptable random I/O performance. Continuous 4K video capture or high-bitrate codecs may exceed the guaranteed minimum write throughput of the U1 class.

How it compares

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

Price $99.99
Pricier than about 72% of the 1,947 comparable items (median $46.99).
Total capacity 512 GB
Higher than about 90% of the 1,132 comparable items (median 64 GB).
Price per TB $195.29 per TB
Cheaper than about 82% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUA4-512G-GN6MN
Part numberSDSQUA4-512G-GN6MN
Total capacity512 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / U1 / Class 10 / A1
Max read speed120 MB/s
Write throughput120mb/s
Storage
Memory card formatMicroSD
More details
VariantNo Adapter

Questions about this item

How do I verify the card is delivering its 120MB/s read speed after setup?

Run a benchmark tool such as CrystalDiskMark or the SanDisk QuickFlow app on the host device; a sustained sequential read near 120MB/s confirms the UHS-I U1 rating is being met.

What is included in the box and what must I buy separately?

The package contains only the 512GB microSDXC card; no SD adapter, USB reader or other accessories are supplied, so purchase those separately if your device lacks a microSD slot.

Which capacity should I choose among the 64GB, 32GB or 512GB options?

Choose the 512GB version when you need to store many hours of Full HD video or large app libraries on an Android phone or tablet; smaller capacities suit lighter use.

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