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Small black microSD card with red label and full-size adapter

SanDisk

SanDisk Extreme Go microSDXC 256GB 240MB/s SDSQXGN-256G-GN6MN memory card

SKU CH-9VS2-WT3NR

A 256GB microSDXC card with 240MB/s read and 160MB/s write speeds, rated U3 V30 A2 for 4K video and fast app loading

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity256GB
  • Speed Class RatingUHS-I U3 4K V30 A2
  • Read SpeedUp to 240MB/s
  • Write SpeedUp to 160MB/s

Capacity 256GB

  • Read speeds up to 240MB/s for rapid file transfers
  • Write speeds up to 160MB/s for smooth 4K video capture
  • U3 and V30 ratings guarantee sustained recording performance
  • A2 rating loads apps faster on Android devices
  • Waterproof, shock proof, X-ray proof and magnet proof durability

What this microSDXC card is and who it serves

The SanDisk Extreme Go microSDXC 256GB card delivers UHS-I speeds with U3, V30 and A2 ratings. It is built for enthusiasts and creators who record 5K point-of-view or 4K UHD video on Android devices, laptops or handheld gaming consoles. The bundled adapter extends compatibility to full-size SD slots.

Suited for 5K and 4K capture.

This card suits users who need sustained write performance for high-resolution video and quick app loading on supported devices. It is not for workflows that require UHS-II or UHS-III bus speeds, nor for devices that demand video speed classes beyond V30.

Read speed up to 240MB/s decides fit

The maximum read speed of 240MB/s sets the transfer ceiling for offloading large video files. Write speed reaches 160MB/s. If your device or card reader cannot utilise UHS-I U3 bandwidth, the extra headroom will not be realised.

Highlights

  • Read speeds up to 240MB/s for rapid file transfers
  • Write speeds up to 160MB/s for smooth 4K video capture
  • U3 and V30 ratings guarantee sustained recording performance
  • A2 rating loads apps faster on Android devices
  • Waterproof, shock proof, X-ray proof and magnet proof durability

Specifications

BrandSanDisk
Card typeMicroSD
SeriesExtreme Go
ModelSDSQXGN-256G-GN6MN
Part NumberSDSQXGN-256G-GN6MN
TypemicroSDXC
Capacity256GB
Speed Class RatingUHS-I U3 4K V30 A2
Read SpeedUp to 240MB/s
Write SpeedUp to 160MB/s
FeaturesSpeed class ratings of U3 and V30.
NAND flash technology for industry-leading durability.
Waterproof, humidity proof, shock proff, X-ray proof, and magnet proof.

Other versions of this model

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Questions about this item

Does this microSDXC card fit a standard SD card slot using the included adapter?

Yes, the supplied adapter converts the microSDXC form factor to full-size SD so it can be used in cameras, laptops or card readers that only accept standard SD cards.

What is the correct way to insert the card so the UHS-I interface runs at up to 240MB/s read and 160MB/s write?

Insert the card label-side up until it clicks, then format it in the host device using the exFAT file system; skipping the in-device format is the step most people miss and can limit speed.

When should I consider replacing the card given its A2 rating and 256GB capacity?

Replace it if you notice sustained write speeds dropping well below the 30MB/s V30 minimum, if the SanDisk app reports health warnings, or after several years of heavy 4K/5K recording workloads.

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