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Small red and grey microSDHC card, 32 GB, U1 80 MB/s read

SanDisk

SanDisk Ultra microSDHC 32GB U1 80MB/s

SKU CH-7S4K-7MQWC

A 32 GB microSDHC card with U1 speed class and 80 MB/s read performance for fast file transfers

  • Total capacity32 GB
  • Memory card formatMicroSD
  • Speed classU1
  • Max read speed80 MB/s
  • Write throughput80
  • VariantNo Adapter
  • 80 MB/s read speed for quick file access
  • 80 MB/s write speed for smooth recording
  • U1 rating guarantees minimum 10 MB/s sustained write
  • 32 GB capacity stores thousands of photos
  • Class 10 performance meets Full HD video demands

Capacity and class

This 32 GB microSDHC card carries a U1 and Class 10 rating, making it suitable for devices that require a minimum sustained write speed of 10 MB/s. It targets users who need reliable storage for Full HD video recording or everyday file transfers in smartphones, tablets, or action cameras.

Sustained write behaviour

The U1 designation guarantees a minimum sequential write speed of 10 MB/s across the whole capacity, not just in short bursts. Rated read and write speeds reach 80 MB/s, so extended recordings or large batch copies maintain consistent throughput without dropping below the class floor.

Upgrade path

This card replaces slower Class 4 or Class 6 media that cannot sustain 10 MB/s writes, eliminating frame drops in Full HD capture. The jump is worth it when your device specifies UHS-I U1 or Class 10 as a minimum requirement for video modes or app performance.

How it compares

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

Price $13.99
Cheaper than about 90% of the 1,947 comparable items (median $46.99).
Total capacity 32 GB
Lower than about 70% of the 1,132 comparable items (median 64 GB).
Price per TB $437.19 per TB
Pricier than about 57% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDSQUNR-032G-GN3MN
Part numberSDSQUNS-032G-GN3MN
Total capacity32 GB
Product typeMicroSDHC
Performance
Speed classU1
Max read speed80 MB/s
Write throughput80
Storage
Memory card formatMicroSD
More details
VariantNo Adapter

Questions about this item

Does the 80 MB/s read speed generate noticeable heat or extra power draw when recording video all day?

The card draws only the standard microSDHC bus power and runs cool enough for continuous full-day recording in phones, drones or action cameras.

What host device slot and file system do I need so the 32 GB capacity is recognised?

Any microSDHC or microSDXC slot with UHS-I support will see the full 32 GB; the card ships pre-formatted FAT32.

Will this U1 card slow down an older camera that only supports Class 10?

The card is rated Class 10 and U1, so it meets the minimum sustained write speed older Class 10 cameras expect without bottlenecking them.

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