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Tiny black microSDXC card, no adapter included

SanDisk

SanDisk SDSQUNR-064G-GN3MN CYT 64GB microSDXC 100MB/s U1 No Adapter memory card

SKU CH-G8HZ-6FS52

64GB microSDXC card rated U1 with 100MB/s read speed, no adapter included

  • Total capacity64 GB
  • Memory card formatMicroSD
  • Speed classU1
  • Max read speed100 MB/s
  • Write throughput120.0
  • VariantNo Adapter
  • 64 GB capacity stores thousands of photos and videos
  • U1 speed class guarantees minimum 10 MB/s write for smooth Full HD recording
  • 100 MB/s read speed transfers large files quickly
  • microSDXC format fits phones, drones and action cameras
  • No adapter included keeps the package compact

64GB microSDXC card for mobile devices

The SanDisk Ultra microSDXC card delivers 64GB of removable storage in the compact microSD form factor. It is designed for smartphones, action cameras, drones and other portable electronics that use microSDXC slots. The card carries a U1 speed rating and Class 10 designation for reliable capture of Full HD video. No SD adapter is included in the package.

Thermals noise and power in typical use

As a solid-state memory card with no moving parts, the device produces no audible noise and generates negligible heat during normal read and write operations. Power draw is minimal, drawing only the small current supplied by the host device's card slot. This makes it well suited for battery-powered equipment where thermal and acoustic signatures must stay low.

Behaviour under sustained write load

The card supports a maximum read speed of 100MB/s and a write speed of 120.0MB/s, allowing continuous recording of high-bitrate Full HD footage without dropped frames. U1 guarantees a minimum sequential write of 10MB/s, so performance remains consistent during long capture sessions. Devices limited to the older microSD or microSDHC standards will not recognise this 64GB XC capacity card.

How it compares

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

Price $18.99
Cheaper than about 80% of the 1,947 comparable items (median $46.99).
Total capacity 64 GB
Typical for this category: the median of 1,132 items is 64 GB.
Price per TB $296.72 per TB
Cheaper than about 60% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUNR-064G-GN3MN
Part numberSDSQUNR-064G-GN3MN
Total capacity64 GB
Product typeMicroSDXC
Performance
Speed classU1
Max read speed100 MB/s
Write throughput120.0
Storage
Memory card formatMicroSD
More details
VariantNo Adapter

Questions about this item

How do I install the SDSQUNR-064G-GN3MN microSDXC card, and what step do people often miss?

Insert the card label-side up until it clicks into the device's microSD slot; the step many miss is confirming the host supports microSDXC 64GB capacity, as older devices limited to microSDHC 32GB will not recognise it.

What maintenance or replacement will this 64GB Ultra card need over time?

No scheduled maintenance is required; replace the card if write speeds drop below the U1 10 MB/s minimum, if read performance falls well under the rated 100 MB/s, or if the device reports read/write errors.

What limit appears first during sustained writing on this U1-rated card?

The U1 speed class guarantees a minimum sequential write of 10 MB/s; under continuous heavy writing the card will throttle to maintain at least that rate, making 10 MB/s the first sustained-use ceiling.

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