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Transcend 340S 512GB microSD card with adapter

Transcend

Transcend 340S 512GB microSD UHS-I U3 A2 memory card

SKU CH-2VQD-CZYAH

High-capacity microSD card with 512 GB storage and A2 performance for fast app loading on mobile devices and handheld consoles

  • TypeMicroSD
  • Speed Class RatingClass 10
  • A2 class enables fast app launches with 4000 IOPS random read
  • 512GB capacity stores large game libraries and media files
  • UHS-I U3 rating sustains 160MB/sec sequential transfer speeds
  • Includes adapter for use in standard SD card slots
  • Class 10 speed class guarantees minimum 10MB/sec write performance

Transcend 340S 512GB microSD

The Transcend 340S is a 512GB microSDXC card built for smartphones, handheld game consoles, action cameras and drone cameras. It carries UHS-I U3 and A2 ratings to handle gaming and app workloads on mobile devices. An SD adapter is included for use in full-size slots.

Sustained speed and random IOPS

The card delivers sequential reads up to 160MB/sec and meets A2 minimums of 4,000 random read IOPS and 2,000 random write IOPS. This combination keeps frame times steady during long sessions and launches apps quickly from the card. Class 10 guarantees a 10MB/sec minimum sequential write floor.

Check device compatibility before ordering

Verify that your device supports microSDXC cards of 512GB capacity and can utilise UHS-I speeds. Some older phones or cameras may cap performance at lower bus rates or reject cards above a certain size. The bundled adapter adds bulk, so confirm the full-size slot has enough clearance.

Highlights

  • A2 class enables fast app launches with 4000 IOPS random read
  • 512GB capacity stores large game libraries and media files
  • UHS-I U3 rating sustains 160MB/sec sequential transfer speeds
  • Includes adapter for use in standard SD card slots
  • Class 10 speed class guarantees minimum 10MB/sec write performance

Specifications

TypeMicroSD
Speed Class RatingClass 10

Questions about this item

Does the 160MB/s card generate extra heat or drain battery during all-day recording on a handheld console?

The card has no moving parts and draws very little power, so it adds negligible heat and has no measurable impact on battery life during continuous use.

My phone only has a full-size SD slot — what else do I need to use this 512GB microSD?

A microSD-to-SD adapter is included in the package, letting you insert the card directly into any standard SD slot.

Will the A2 4000/2000 IOPS rating actually speed up game loads on my older Nintendo Switch?

The Switch only supports UHS-I speeds, so you will see the card’s 160MB/s sequential limit but not the full A2 random IOPS benefit.

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