T Series We've got your back Built to perform and engineered to endure our flagship laptops have you covered in the office out in the field and everywhere in between. Productivity rich features like epic battery life blazing fast USB C Thunderbolt® ports and powerful processing keep you up and running. A lot of Think ThinkPad has been to the top of Mount Everest the depths of the ocean and the canopies of rain forests. NASA embraced the ThinkPad on both the International and the Mir Space Stations. It's even in the permanent collection at the Museum of Modern Art in NY. No small wonder then that we've sold well over 100 million and counting of these reliable devices thanks in part to loyal T Series customers.