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Small black microSDXC card with red SanDisk label, no adapter included

SanDisk

SanDisk SDSQUNR-256G-GN3MN 256GB microSDXC 100MB/s Class 10 UHS-I No Adapter

SKU CH-JJ76-Z6Y7E

256 GB microSDXC card rated Class 10 UHS-I with up to 100 MB/s read speed, sold without an adapter

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity256GB
  • Speed Class Ratingclass_10
  • Read Speed100 megabytes_per_second
  • Write Speed100.0
  • 256GB capacity stores hours of 4K footage
  • 100MB/s read speed transfers large files quickly
  • Class 10 UHS-I rating guarantees minimum 10MB/s write performance
  • microSDXC format fits phones drones and action cameras
  • No adapter included keeps the package compact

What this card is and who it suits

The SanDisk SDSQUNR-256G-GN3MN is a 256GB microSDXC card rated for Class 10 and UHS-I with a maximum read speed of 100MB/s. It is intended for users who need high-capacity removable storage in phones, action cameras, drones or other compact devices that accept the microSDXC format. The card is sold without an adapter.

What to verify before ordering

Confirm that your device explicitly supports the microSDXC standard, which covers capacities from 64GB to 512GB. Older hardware limited to microSD or microSDHC will not recognise this 256GB card. Also check whether your device requires the full-size SD adapter, because none is included in the package.

Behaviour under sustained workloads

The card delivers a sequential read rate of 100MB/s and a write rate of 100.0MB/s. During prolonged recording or large file transfers the throughput will settle at or near these rated figures rather than dropping to a lower sustained minimum. Class 10 guarantees a minimum write speed of 10MB/s, so extended writes will not fall below that threshold.

商品特色

  • 256GB capacity stores hours of 4K footage
  • 100MB/s read speed transfers large files quickly
  • Class 10 UHS-I rating guarantees minimum 10MB/s write performance
  • microSDXC format fits phones drones and action cameras
  • No adapter included keeps the package compact

商品規格

BrandSanDisk
Card typeMicroSD
ModelSDSQUNR-256G-GN3MN
Part NumberSDSQUNR-256G-GN3MN
TypemicroSDXC
Capacity256GB
Speed Class Ratingclass_10
Read Speed100 megabytes_per_second
Write Speed100.0
OptionNo Adapter

商品問答

Does the 256GB microSDXC card ship with a full-size SD adapter or must I buy one separately?

The card is supplied without an adapter; a microSD-to-SD adapter must be purchased separately if your device only has a full-size slot.

Is the 256GB capacity the only option in this Ultra line or are smaller sizes available?

The Ultra microSDXC range starts at 64GB and includes 256GB and 512GB capacities; microSDHC versions cover 4GB to 32GB.

Will the 100MB/s read speed be reached in my phone or camera?

The 100MB/s figure is the maximum sequential read speed under ideal conditions; real-world throughput depends on the host device's UHS-I implementation and file system overhead.

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