Seagate Technology has doubled the capacity of its premium brand of LaCie Rugged Thunderbolt solid state drives (SSDs), which will now be available in a 1 terabyte (TB) capacity, with no size or weight increase compared to the 500 GB offering.Designed by award-winning product designer Neil Poulton, the Rugged will be available this month through the LaCie Online Store and the company’s network of resellers.