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Small red microSD card with full-size SD adapter and black lanyard

SanDisk

SanDisk MAX ENDURANCE 256GB microSDXC C10 U3 V30 100MB/s with Adapter and Lanyard

SKU CH-SX1B-N6CA0

256 GB microSDXC card rated C10 U3 V30 for up to 120,000 hours of continuous 4K recording in security cameras and dash cams

  • Total capacity256 GB
  • Memory card formatMicroSD
  • Speed classC10 U3 V30 4K
  • Max read speedUp to 100 MB/s
  • Write throughputUp to 40 MB/s
  • Product typeMicroSDXC
  • Records up to 120,000 hours of continuous footage
  • Withstands temperature, water, shock and X-ray exposure
  • Captures Full HD and 4K video at U3 V30 speeds
  • Transfers files quickly at up to 100MB/s read
  • Includes SD adapter and lanyard for easy handling

High-endurance microSDXC for continuous recording

The SanDisk MAX ENDURANCE 256GB card is built for devices that write video around the clock, such as home security cameras and dash cams. It carries C10, U3 and V30 speed ratings to sustain Full HD and 4K capture without dropped frames. The package includes a full-size SD adapter and a lanyard for convenient handling.

Fits standard microSD slots with SD adapter included

The microSDXC form factor slots directly into compatible cameras, recorders and action cams. The bundled SD adapter lets you use the same card in full-size SD readers or laptops for quick offloading. No external power or special drivers are required; the card draws power from the host device.

256GB capacity rated for 120000 hours of recording

At up to 100MB/s read and 40MB/s write, the card transfers large video files efficiently while maintaining the sustained throughput needed for 4K. The 256GB capacity holds extensive footage before looping, and the endurance rating supports continuous overwrite cycles far beyond typical consumer cards.

How it compares

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

Price $104.99
Pricier than about 73% 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 $410.12 per TB
Typical for this category: the median of 901 items is $374.69 per TB.

Specifications

Product
Brand nameSanDisk
Product lineMAX ENDURANCE
Model nameSDSQQVR-256G-GN6IA
Total capacity256 GB
Product typeMicroSDXC
Performance
Speed classC10 U3 V30 4K
Max read speedUp to 100 MB/s
Write throughputUp to 40 MB/s
Storage
Memory card formatMicroSD

Questions about this item

How many hours of continuous recording can the 256GB card handle before it reaches its endurance limit?

The card is engineered for up to 120000 hours of recording and re-recording for home security cameras and dash cams.

Does the card generate noticeable heat or noise when writing 4K footage all day?

The card has no moving parts so it runs silently; its temperature-proof and shockproof design handles sustained write loads without overheating.

What host device and file system are required to use the full 256GB capacity and V30 speed?

A device that supports the microSDXC standard and exFAT formatting is needed to access the full 256GB and sustained 30MB/s write performance.

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