With incredible speed, the official licensed SanDisk microSDXC™ card for the Nintendo Switch™ System lets you add up to 1TB1 of space to your system. Spend less time waiting and more time gaming with read and write speeds of up to 100MB/s2 and 90MB/s2 respectively.
— Read on www.westerndigital.com/products/memory-cards/sandisk-nintendo-switch-microsd