Such is the case with the Lenovo ThinkPad 13 — it’s got a M.2 M-key socket, yet somehow only supports SATA SSDs in it, despite the CPU being new enough to support both SATA and NVMe effortlessly.

Lenovo uses a glass-fiber reinforced plastic case for the ThinkPad X280 touch screen model, and a carbon-fiber case for the non-touch model. In both instances, the use of these materials enables ...