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SanDisk High Endurance 256GB microSDXC card with adapter

SanDisk

SanDisk High Endurance 256GB microSDXC memory card

SKU CH-73JH-PW58Z

Records up to 20,000 hours of Full HD or 4K footage with 100 MB/s read speed, Class 10, U3, V30 ratings, and shockproof, waterproof, X-ray proof durability

  • Total capacity256 GB
  • Memory card formatMicroSD
  • Speed classClass 10
  • Max read speed100 MB/S
  • Write throughput40mb/s
  • VariantWith Adapter

Capacity 256GB

  • Records up to 20,000 hours of continuous footage
  • Withstands extreme heat, cold, shock, water and X-rays
  • Class 10, U3 and V30 ratings for Full HD and 4K
  • 256 GB capacity stores more video between rewrites
  • Up to 100 MB/s read speed transfers files quickly

Built for continuous recording

The SanDisk High Endurance microSDXC card is engineered for dash cams, home monitoring and security systems that write video around the clock. It withstands extreme temperatures, shock, water and x-ray exposure while delivering reliable performance for critical footage capture.

256 GB capacity with 20 000-hour endurance

The card stores up to 256 GB of Full HD or 4K video and is rated for up to 20 000 hours of continuous recording and re-recording. Sequential write speed reaches 40 MB/s, which sustains high-bitrate streams, while read speeds of 100 MB/s allow fast offload of recorded files.

Class 10, U3 and V30 speed ratings

These three ratings guarantee the minimum sustained write performance required for uninterrupted Full HD and 4K recording. The card uses the UHS-I microSDXC interface and includes a full-size SD adapter for broader device compatibility.

How it compares

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

Price $68.99
Pricier than about 61% of the 1,947 comparable items (median $46.99).
Total capacity 256 GB
Higher than about 80% of the 1,132 comparable items (median 64 GB).
Price per TB $269.49 per TB
Cheaper than about 66% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Total capacity256 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

Will the 100 MB/s read speed work with my older dash cam that only supports Class 10?

Yes, the card is rated Class 10, U3 and V30 so it will operate at the speed your device allows while still delivering up to 100 MB/s read on newer readers.

How can I verify the card is recording 4K footage reliably after installation?

Check that the dash cam or security system shows continuous recording without dropped frames and that playback of saved 4K files is smooth on a computer.

Does the package include the SD adapter or do I need to buy it separately?

The option listed is With Adapter, so the microSD-to-SD adapter comes in the box and no separate purchase is required.

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