So about the promo offer. At first I thought this was the newest big technology step, with Samsung working on something new and neat, too. But then I paused for a moment, took the time to think, and realized that interface speed limitation thing and that it has already been overcome. U.2 is M.2 via cable. You need a multi-PCVe-lanes interface to make use of high speeds, basically not SATA. Optane are U.2, Samsung is offering M.2. They're adaptable. Let's compare: Samsung 250 GB: 3.2 GB/s read, 1.5 GB/s write, 330k/300k IOPS Optane 280 GB: 2.4 GB/s read, 2.0 GB/s write, 550k/500k IOPS ... for 4-5x the price of the Samsung. But you can fly a Raven before game release! O_O (see comments for update)