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Small red-and-black microSDXC card, 128GB, UHS-I U3, A2 rating

SanDisk

SanDisk Extreme microSDXC 128GB 190/90MB/s memory card

SKU CH-ZADS-HTQ9V

High-speed microSDXC card with 128GB capacity, 190MB/s read and 90MB/s write for mobile gaming and 4K UHD video

  • TypeMicroSD
  • Capacity128GB
  • Read up to 190MB/s for fast game loading
  • Write up to 90MB/s for smooth 4K video capture
  • A2 app performance cuts load times
  • 128GB capacity stores more games
  • Built for mobile gaming and 4K UHD

Mobile Gaming Storage

This SanDisk Extreme microSDXC card provides 128GB of capacity for mobile devices. It targets gamers who need quick access to large titles and 4K UHD video files. The A2 rating means installed applications launch and run directly from the card with reduced latency. It suits phones, tablets and handheld consoles that accept microSDXC media.

Thermals Noise Power

Solid-state memory cards have no moving parts and draw minimal current during read or write operations. The controller manages heat passively through the plastic casing without a fan or heatsink. Silent operation is inherent to the form factor. Power consumption scales with transfer activity and stays well within the limits of mobile battery budgets.

Build And Compatibility

The microSDXC form factor fits any device with a compatible slot, while the bundled SD adapter enables use in full-size readers. UHS-I U3 branding confirms the card sustains the minimum write throughput required for 4K UHD recording. Durable construction resists shock, water, temperature extremes and X-rays for reliable daily transport.

Highlights

  • Read up to 190MB/s for fast game loading
  • Write up to 90MB/s for smooth 4K video capture
  • A2 app performance cuts load times
  • 128GB capacity stores more games
  • Built for mobile gaming and 4K UHD

Specifications

TypeMicroSD
Capacity128GB

Questions about this item

How do I install this microSDXC card in my phone or Switch, and what step do people often get wrong?

Insert the card label-side up until it clicks into the microSD slot; the common mistake is forcing it in upside-down or stopping before the click, which leaves the contacts unseated.

What maintenance or replacement will this 128GB card need over time?

No scheduled maintenance is required; replace the card only if read speeds drop well below 190MB/s, write speeds fall under 90MB/s, or the device reports read/write errors.

What limit appears first during sustained 4K recording or heavy game loads?

The 90MB/s sequential write ceiling is reached before the 190MB/s read limit, so extended 4K UHD capture or large asset streaming will throttle at the write speed.

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