In a world where 128GB micro SD cards have become commonplace, Micron has announced that its industrial-grade i400 microSD will be available in capacities ranging from 256GB to 1TB. And that’s not all, the company also has a ‘never-seen-before’ 1.5TB option coming and, to be honest, we are expecting it to be very, VERY expensive.


  • Micron has achieved this capacity by using its 176-layer 3D NAND technology and will cater to anything that has to do with video storage.
  • The 1.5TB microSD card is not expected to be cheap or easy to source.
  • It is designed to handle five years of continuous 24×7 high-quality recording and a whopping mean time before failure MTBF of two million (roughly 228 years), making it pretty obvious that the primary use-case would be a storage device for video security devices like dash cams, home security solutions, body cameras for police, and more.
  • The i400 microSD card, however, comes without SD Express, a technology that enables high speed data transfers that could boost data transfers to up to 4GB per second.
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