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Small black microSD card with red label and SD adapter

SanDisk

SanDisk Extreme Go microSDXC 128GB SDSQXGN-128G-GN6MN memory card

SKU CH-9JYM-PCDCJ

A 128 GB microSDXC card rated U3, V30 and A2 with read speeds up to 240 MB/s and write speeds up to 120 MB/s for 4K video and fast app loading

  • Total capacity128 GB
  • Memory card formatMicroSD
  • Speed classUHS-I U3 4K V30 A2
  • Max read speedUp to 240 MB/s
  • Write throughputUp to 120 MB/s
  • Product typeMicroSDXC

Capacity 128GB

  • Up to 240 MB/s read speed for rapid file transfers
  • Up to 120 MB/s write speed captures 4K and 5K video smoothly
  • U3, V30 and A2 ratings ensure sustained performance for apps and recording
  • Waterproof, shock-proof, X-ray-proof and magnet-proof construction protects data in harsh conditions
  • Includes SD adapter for use in cameras, laptops and other full-size card slots

SanDisk Extreme Go microSDXC 128GB

This SanDisk Extreme Go microSDXC card delivers 128GB of storage for mobile devices and action cameras. It carries UHS-I U3, V30 and A2 speed ratings for 4K video capture and fast app loading. Read speeds reach up to 240MB/s while write speeds hit 120MB/s. The bundled adapter allows use in full-size SD slots.

Suited for 4K recording and Android expansion

Creators shooting 4K UHD or 5K point-of-view footage on drones or action cameras will benefit from the sustained V30 write performance. Android users gain quicker app launches and smoother multitasking thanks to the A2 rating. Buyers who need more than 128GB of capacity should consider higher-capacity options. Devices limited to UHS-I bus speeds cannot utilise faster interfaces.

UHS-I U3 V30 A2 speed class rating

The card’s U3 and V30 ratings guarantee a minimum sequential write speed of 30MB/s, the threshold for uninterrupted 4K video recording. A2 certification adds random read and write performance for running applications directly from the card. This single specification determines whether the card meets your device’s minimum speed requirement.

How it compares

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

Price $46.99
Typical for this category: the median of 1,947 items is $46.99.
Total capacity 128 GB
Higher than about 60% of the 1,132 comparable items (median 64 GB).
Price per TB $367.11 per TB
Typical for this category: the median of 901 items is $374.69 per TB.

Specifications

Product
Brand nameSanDisk
Product lineExtreme Go
Model nameSDSQXGN-128G-GN6MN
Part numberSDSQXGN-128G-GN6MN
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classUHS-I U3 4K V30 A2
Max read speedUp to 240 MB/s
Write throughputUp to 120 MB/s
Storage
Memory card formatMicroSD

Other versions of this model

5 more in the same range

Questions about this item

Does my Android phone need A2 support to use this 128 GB microSDXC card?

The card works in any device with a microSDXC slot; A2 rating means faster app loading on Android phones that support it.

Will the 240 MB/s read speed work with my older UHS-I card reader?

The reader must support UHS-I to reach the rated 240 MB/s read speed; older readers will fall back to lower speeds.

How can I verify the card delivers the rated 120 MB/s write speed after formatting?

Run a sequential write benchmark on a PC using a UHS-I reader; sustained results near 120 MB/s confirm the V30 rating is met.

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