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MicroSD cards are compact storage solutions used primarily in portable electronics, particularly smartphones and tablets, but also cameras, drones, and gaming devices. They offer removable memory that can be swapped between devices or expanded upon when more space is needed. Though smaller than full-size SD cards, they retain the same functionality, albeit with lower storage capacities typically ranging from 16GB to 512GB. Despite their diminutive size, microSD cards deliver impressive data transfer rates and robust durability, making them an essential accessory for many modern tech devices.