MicroSD Card Specifications
MicroSD card specifications are defined by several key standards as illustrated in the infographic. Memory capacity standards include SDSC (up to 2GB), SDHC (2GB to 32GB), SDXC (32GB to 2TB), and SDUC (2TB to 128TB). UHS speed class defines minimum sequential write speeds, such as U1 (10MB/s) and U3 (30MB/s), while video speed class ensures video performance with ratings like V6 (6MB/s) to V90 (90MB/s). Application performance class focuses on random and sequential speeds with A1 (1500 IOPS read, 500 IOPS write) and A2 (4000 IOPS read, 2000 IOPS write). Finally, UHS bus speed governs data transfer rates, with UHS-I (up to 104MB/s), UHS-II (up to 312MB/s), and UHS-III (up to 624MB/s), providing benchmarks for selecting cards suited to specific tasks.
