-High speed transfer! It is the best micro SD card for Nintendo Switch. -Micro SD card for "Nintendo Switch" 128GB model. -It is effective as extended storage such as download data. Switch Corresponds to the -high-speed transfer mode optimum for the main body specifications. You can move data without stress. -Transfer mode: SDR 104 compatible UHS class I speed class 10 reading 80 MB / s writing 15 MB / s -It is an official licensed product of Nintendo that is suitable for writing test