It appears that the upcoming NGFF (Next Generation Form Factor) SSDs have appeared as an option in one of Lenovo's laptops -- the ThinkPad Edge R431. While buyers can only choose from one size SSD, it's still nice to see new form factors arrive.
Users can choose from either a 24 GB NGFF SSD or No NGFF SSD. The added cost for the 24 GB NGFF SSD is $50. The intent is clearly for the unit to be used as a caching SSD.
NGFF SSDs are SSDs that might appear similar to mSATA SSDs, but they are actually even a tad smaller, measuring just 42 x 22 mm. In contrast, mSATA SSDs measure 51 mm x 30 mm. They are also 1 mm thinner for double sided units, and 2.1 mm thinner for single sided units, at just 2.75 mm thick.