https://www.gamespot.com/articles/nintendo-switch-sd-cards-giveaway/1100-6454389/

We teamed up with SanDisk to give away new official Nintendo®-licensed SanDisk microSDXC cards for Nintendo Switch:

Four (4) winners will be chosen after the competition ends Sunday, November 5th, 2017 at 5:00PM PT. Entry is open to US residents only, void where prohibited.