Samsung MB-MJ256K 256 GB MicroSDXC UHS-I Class 10 purchased inexpensively from Mercateo

Extreme endurance for monitoring devices
Take the worry out of always-on recording. Engineered to deliver longest lasting performance, the Samsung PRO Endurance is a perfect fit for CCTV, dash cams, and body cams. Capture your crucial moments in high-resolution, even in harsh conditions.

Built to last up to 140K hours of recording
Astoundingly reliable stamina. With capacities up to 256GB^[1] , the PRO Endurance records and rewrites up to 140K hours (over 16 years)**]. Plus, your data is secured with a limited warranty up to 5 years.

Record and play in FHD/4K
The PRO Endurance optimises handling of large video files with read/write speeds up to 100/40MB/s^[2]. Plus, FHD and 4K resolution support ensures that crucial moments are recorded in immense clarity and detail for the times you need them the most.

Critical data. Safeguarded.
From severe weather to extensive wear and tear, the PRO Endurance stands up to real-world situations. It is rigorously tested and proven resistant to magnets^[3] , X-rays , water , drop , wearout , and withstands operating temperatures ranging from -25°C to 85°C.

World's No.1 Flash Memory
Experience the superior performance and reliability that you can get from the world's number one brand for flash memory since 2003. All firmware and components, including Samsung's world-renowned DRAM and NAND, are produced in-house, allowing end-to-end integration for quality you can trust.