Product highlights:
- 256GB capacity
- designed for surveillance cameras, dash cams, and body cams
- UHS-1 interface
- supported speed classes:
- UHS Speed Class 3
- Video Speed Class V30 (certifies high minimum speed for video)
- Speed Class: 10
- read speed: 100MB/s
- write speed: 40MB/s
- waterproof, X-ray-proof, magnet-proof, and drop-proof
- endures temperatures from -13° to 185°F
- tested against wearing out for approximately 140,160 hours of use
- includes full-size SD card adapter
- warranty: 5 years card (1 year adapter)
- Our 60-day money-back guarantee
- MFR # MB-MJ256KA/AM
What's in the box:
- 256 GB microSDHC memory card
- SD adapter for microSD
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Samsung PRO Endurance microSDXC Memory Card reviews
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More details on the Samsung PRO Endurance microSDXC Memory Card

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Features
Overview: The Samsung PRO Endurance microSDXC flash memory card is engineered to deliver long lasting performance and is the perfect fit for CCTV, dash cams body cams, as well as other surveillance type camera systems with a microSD memory card slot. A full-size SD card adapter is included for use with SDXC-compatible devices. The card is backed by a 5-year limited warranty, while the adapter is covered for one year.
Durability: From severe weather to extensive wear and tear, the PRO Endurance stands up to real-world situations. After rigorous testing, PRO Endurance stands up against magnets, X-rays, water, drop, wearout, and stays cool under pressure in extreme operating temperatures.
- Video Monitoring: up to 70,080 hours (equivalent to 8 years) of constant monitoring
- Waterproof: withstand up to 72 hours in 1 meter depth of seawater
- Temperature: operating temperatures of -25°C to 85°C (-13F° to 185°F); non operating temperatures of -40°C to 85°C (-40°F to 185°F)
- X-Ray: up to 100mGy (equal to airport X-ray machines)
- Magnetic Fields: up to 15,000 gauss for 30 seconds, or the magnetic field of a high-field MRI
- Drop: withstands drops up to 5 meters (16.4 feet)
- Wearout: up to 10,000 swipes
Speed Class Rating: This PRO Endurance microSDXC card has a Class 10 SD speed rating. The card also has a UHS-I interface and a UHS Speed Class rating of U3, making it a recommended medium for recording large, mega-pixel photos and 4K UHD video. It has a Video Speed Class rating of V30. It has a read speed of up to 100 MB/s and a write speed of up to 40 MB/s.
Usable Memory: A portion of the card's capacity is used for system files and maintenance. The actual usable capacity of this card is slightly less than the labeled capacity.
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Customer Q&A
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Works as expected! Great price.
Chris from Fair Oaks, CA