M.2 is a slot that can interface with SATA 3.0 (the cable that’s probably connected to your desktop PC’s storage drive right now), PCI Express 3.0 (the default interface for graphics cards and other major expansion devices), and even USB 3.0.

The value of coefficient of volume expansion of glycerine is 5x10-4 k-1. The fractional change in density of glycerine for a rise of 40 degree C in its tempe.