You don't exactly have a ton of options when it comes to portable solid-state drives. You can get fast performance or high capacity at a halfway affordable price, but rarely both. Samsung thinks it can strike that tricky balance with its first-ever external option, the Portable SSD T1. The USB 3.0 storage is based on the same speedy-yet-cheap V-NAND chips as the 850 EVO drive you might buy for your gaming PC, letting it hold a large chunk of your files without devastating your wallet or slowing down -- it reads and writes at 450 MB/s, or just about desktop-level speeds. The line starts off modestly with a 250GB drive that costs $180, but you can opt for 500GB ($300) or 1TB ($600) if you have a lot of games or movies to carry around. That's still expensive compared to spinning hard disks, but it's a relative steal for the performance. Look for the T1 to hit US stores around mid-January.