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Small black microSD card with red Viper label

Patriot Memory

Patriot Viper 256GB Micro SD U3 V30 A2 memory card

SKU CH-SKJK-0E42D

A 256 GB microSD card with U3, V30 and A2 ratings delivers up to 100 MB/s reads and 90 MB/s writes for handheld consoles

  • 256 GB capacity stores large game libraries and media
  • U3 and V30 ratings deliver smooth 4K video capture
  • A2 class speeds up app loading on handhelds
  • Read up to 100 MB/s and write up to 90 MB/s for fast transfers
  • Works with Nintendo Switch, Steam Deck, ROG Ally and more

Capacity and purpose

This 256GB microSDXC card adds substantial storage for handheld consoles, smartphones and tablets. It targets gamers who want a single card to hold a large library of titles and captured footage without frequent swaps.

Upgrade path and value

It replaces lower-capacity or slower Class 10 and U1 cards that bottleneck load times on modern handhelds. The jump is worthwhile when your current card forces you to delete games or struggles with 4K video capture at 30MB/s sustained write.

UHS-I bus limits

The UHS-I interface caps sequential reads at 100MB/s and writes at 90MB/s, so throughput cannot exceed these figures even in faster readers. Random I/O performance is rated A2 for app loading, but sustained write drops below V30 if the host cannot maintain the required bus speed.

Highlights

  • 256 GB capacity stores large game libraries and media
  • U3 and V30 ratings deliver smooth 4K video capture
  • A2 class speeds up app loading on handhelds
  • Read up to 100 MB/s and write up to 90 MB/s for fast transfers
  • Works with Nintendo Switch, Steam Deck, ROG Ally and more

Specifications

No published specifications for this item yet.

Questions about this item

Does the 256 GB microSD card fit a standard microSD slot in a Nintendo Switch or Steam Deck?

Yes, it is a standard microSDXC card compatible with the microSD slot on Nintendo Switch, Steam Deck, ROG Ally and other handheld consoles.

What is the correct way to insert the card so the console recognises it immediately?

Power off the device, insert the card label-side up until it clicks, then power on; the common mistake is inserting it while the console is still running.

How long will the card last under heavy game installs and 4K video recording?

It carries U3, V30 and A2 ratings for sustained 30 MB/s write and random IO performance, and Patriot specifies a 10-year limited warranty period.

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