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Brand: Micron
Features
Micron 256GB microSD cards in this range support the SD 3.0 UHS‑I interface with Class 10 performance, enabling sustained high‑bitrate recording and quick access to stored data. They are designed for 24/7 operation with extended endurance and industrial temperature support from about −25 °C to +85 °C. Built‑in management and protection features help maintain data integrity over long service life. Typical use cases include security cameras, industrial recorders, IoT gateways, and other systems requiring reliable local storage.
Specification.
Capacity: 256GB microSDXC.
Form factor: microSD card (microSDXC).
Speed class: SD Speed Class 10 (many variants also UHS‑I U3 / A2 depending on part number).
Interface: UHS‑I, nominal 3.3 V supply.
Operating voltage: Approximately 2.7–3.6 V.
Operating temperature: −25 °C to +85 °C (industrial‑grade models).
Storage temperature: Around −40 °C to +85 °C.
Endurance (TBW): Up to about 240TB total bytes written for 256GB endurance‑grade variants.
Interface type: UHS‑I bus, supporting default and high‑speed modes.
Dimensions: Standard microSD form factor, approximately 15.0 × 11.0 × 1.0 mm.
Usage: Continuous video recording, AI edge capture, industrial logging, and general high‑reliability embedded storage.
Read/write speed: Typical sequential read up to around 90–100 MB/s with write speeds depending on the exact UHS speed class and model; specific maximums are part‑number dependent and should follow the relevant Micron datasheet.
Bus/connector standard: microSDXC, UHS‑I, SD Speed Class 10; usable in microSDHC/microSDXC‑compatible host slots and via SD adapters where supported.
Warranty: 12 months.