Micron releases 1.5TB microSD card

At Embedded World 2022 this week, Micron announced its new i400 series of microSD cards. In general, new microSD cards from manufacturers aren’t big news, but Micron’s i400 series stands out for two things, the maximum capacity offered and its durability rating.
The capacity of the i400 series starts from 64GB and reaches a maximum of 1.5TB, which is by far the largest capacity microSD card on the market. According to Micron, 1.5TB of storage is enough for a surveillance camera (resolution unknown) to record video continuously for up to four months. The microSD card is also capable of processing up to eight events per second, such as facial or license plate recognition, while recording 4K video.

Micron said that the i400 series microSD cards use 176-layer 3D NAND flash memory. It is an industrial-grade product, and at the same time, its continuous performance is optimized, and it can achieve 7×24 continuous writing for five consecutive years or 2 million hours of mean time between failure (MTBF).

Micron did not provide performance data for the i400 series of microSD cards, but the series supports U3, A2, and Class 10 data transfer speeds except for the 128GB that supports U1, A2, and Class 10 data transfer speeds. Additionally, the i400 series microSD cards operate at temperatures between -25 and 85 degrees Celsius.

The pricing and availability of the i400 series of microSD cards are not yet known, but Micron has already provided samples to customers.