Stay connected while you're traveling in the United States with an unlimited 4G data SIM card from T-Mobile! You'll be able to communicate with your friends and family, navigate your way around the country and keep up to date with the latest events without incurring steep roaming costs. Aside from that, you also get to enjoy unlimited calls and texts with other domestic numbers in the United States! Now you don't need to worry about exorbitant roaming costs. With convenient pick up service at Taipei Taoyuan International Airport and Kaohsiung Airport International Terminal, you'll be all set as soon as you land.