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Small black microSDXC card with full-size SD adapter

SAMSUNG

SAMSUNG PRO Endurance 64GB microSDXC UHS-I U1 100MB/s memory card

SKU CH-DBQ7-8SA4K

A 64 GB microSDXC card rated for up to 35,040 hours of continuous Full HD recording at 26 Mbps

  • Total capacity64 GB
  • Memory card formatMicro SDXC
  • Speed classClass 10
  • Max read speed100 MB/s
  • Write throughput30 MB/s
  • Variant64 GB
  • Records up to 35,040 hours of Full HD video on a 64 GB card
  • Read speeds up to 100 MB/s and write speeds up to 30 MB/s for smooth 4K capture
  • Withstands magnetic fields up to 15,000 Gauss for reliable operation near strong magnets
  • Survives airport X-ray machines without data loss during travel
  • Resists water, drops and extreme temperatures for dependable outdoor use

Engineered for Continuous Video Recording

The Samsung PRO Endurance 64 GB microSDXC card targets users who need reliable, long-duration capture in dash cams, body cams or CCTV systems. It carries a UHS-I U1 rating with a 100 MB/s read speed and a 30 MB/s write speed, supporting Full HD and 4K footage. The bundled SD adapter lets the card slot into full-size readers or cameras without extra accessories.

Sustained Write Performance for Monitoring Workloads

Rated for up to 35,040 hours of Full HD recording at 26 Mbps, the 64 GB model is built to handle constant overwrite cycles far beyond typical consumer cards. The 30 MB/s sequential write speed maintains steady throughput during extended sessions, while the 100 MB/s read speed accelerates offload to a workstation. Performance varies with host device and file system, so real-world figures may differ from the internal test baseline.

Ruggedised Build with Environmental Protections

The card resists magnetic fields up to 15,000 Gauss, airport X-ray exposure, water immersion and physical drops, reducing failure risk in harsh mobile or outdoor installations. A three-year limited warranty covers the 64 GB card itself, while the supplied adapter carries a separate one-year term. No moving parts mean silent operation and lower mechanical wear during vibration-heavy use cases.

How it compares

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

Price $62.99
Pricier than about 58% 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 $984.22 per TB
Pricier than about 83% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSAMSUNG
Model nameMB-MJ64KA
Part numberMB-MJ64KA
Total capacity64 GB
Product typeMicro SDXC
Performance
Speed classClass 10
Max read speed100 MB/s
Write throughput30 MB/s
Storage
Memory card formatMicro SDXC
More details
Variant64 GB

Questions about this item

Does the 30 MB/s write speed generate noticeable heat during continuous dash-cam recording?

The card is rated for up to 35,040 hours of Full HD recording at 3.25 MB/s, indicating low sustained power draw and minimal heat under typical monitoring workloads.

What host device slot is required to use the 64 GB microSDXC card?

A microSDXC-compatible slot that supports UHS-I and the exFAT file system is needed; the included adapter allows use in full-size SD slots.

Will the UHS-I 100 MB/s read speed work with an older Class 10-only card reader?

The card is backward-compatible with Class 10 hosts, though read speed will be limited to the reader's maximum interface capability.

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