Samsung Samsung has developed a new line of SD Express microSD cards that boast some seriously impressive specifications like 1TB capacity and 800 MB/s transfer speeds. That sounds great on the surface, but it isn’t the whole story. Samsung’s announcement isn’t for general availability but that it has begun producing these new SD Express microSD cards. The company plans to release a series, starting at the bottom with a 256GB capacity (which isn’t in mass production yet, but rather it “started...