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A small black microSDXC card with adapter, 15 by 11 by 1.0 mm

SanDisk

SanDisk High Endurance microSDXC 64GB U3 V30 100MB/s memory card

SKU CH-7T5A-GC0CR

High Endurance microSDXC card rated Class 10, U3, V30 for 4K dash-cam recording up to 20,000 hours

  • Total capacity64 GB
  • Memory card formatMicroSD
  • Speed classClass 10
  • Max read speed100 MB/S
  • Write throughput40mb/s
  • VariantWith Adapter

Capacity 64GB

  • Records up to 20,000 hours of continuous footage
  • Reads at 100MB/s for fast file transfers
  • Withstands extreme heat, cold, shock, water and X-rays
  • Class 10, U3 and V30 ratings support Full HD and 4K
  • Includes SD adapter for use in standard card slots

Built for continuous recording

This microSDXC card is designed for dash cams and security systems that write video around the clock. It carries Class 10, U3 and V30 ratings so it can sustain Full HD and 4K capture without dropping frames. The 64GB capacity stores hours of footage before the oldest files are overwritten. An SD adapter is included for use in full-size slots.

Endurance under constant rewrite cycles

The card is rated for up to 20,000 hours of continuous recording and re-recording. It operates reliably in extreme heat and freezing cold, and it is shockproof, waterproof and x-ray proof. Read speeds reach 100MB/s while write speeds hit 40MB/s, allowing fast offload of saved clips. These figures reflect sustained performance rather than short burst peaks.

V30 sustained write guarantee

The Video Speed Class 30 rating guarantees a minimum sequential write speed of 30MB/s, which is the single specification that determines whether the card can keep up with your camera's bitrate. If your device requires a higher sustained write class, this card will not meet that need.

How it compares

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

Price $33.99
Cheaper than about 60% 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 $531.09 per TB
Pricier than about 65% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Total capacity64 GB
Product typeMicroSDXC
Performance
Speed classClass 10
Max read speed100 MB/S
Write throughput40mb/s
Storage
Memory card formatMicroSD
More details
VariantWith Adapter

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 64GB microSDXC card draw during continuous 40MB/s write cycles?

The card draws minimal power from the host device during sustained writes; microSD cards have no separate power supply and consume only what the slot provides for flash operations.

What host device and file system are required for the U3 V30 speed ratings to work?

A device with a UHS-I microSDXC slot and exFAT formatting is needed; the card includes a microSD-to-SD adapter for full-size slots.

Will the Class 10 U3 card maintain 30MB/s minimum write speed in an older dash cam that only supports Class 10?

Yes, the card is backward compatible and will sustain at least Class 10 (10MB/s) write speeds in older hosts; U3/V30 minimums require a UHS-I capable device.

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