Micron and SanDisk presented new microSD memory cards at MWC 2019. With 1 terabyte of storage space, they offer twice as much space as the previous top models. While the 512 GB SanDisk model costs 189 euros, the 1 TB version costs 489 euros.
Both the SanDisk and Micron models rely on the UHS-I interface. In addition, they are classified in the U3 speed class, which certifies them a sustained write rate of at least 30 MB/s. The App Performance Class A2, on the other hand, states that at least 4,000 IOPS are read and 2,000 IOPS are write achieved.
The SanDisk Extreme UHS-I microSDXC memory card with 1 terabyte storage capacity is expected to be available from April. With a SanDisk card reader, the memory card should reach a reading speed of 160 MB/s. The memory card should be able to read at least 160 MB/sec.
The Micron c200 microSDXC UHS-I is expected to be available in the second quarter of 2019, but Micron has not yet announced a price. At 100 MB/s reading speed, it is significantly slower than the SanDisk model, but the SanDisk memory card can only reach this speed with the overclocked SanDisk card reader. In other devices it is also bound to the maximum transfer rate of 104 MB/s of the UHS-I standard.