OWC doubled the capacity of the OWC Thunderblade from 8TB to 16TB in late spring of 2020.
The new capacity option is incredible in historical terms: while hardly inexpensive, multi-gigabyte per second performance across 16TB of capacity opens up new possibilities for photo and video professional, or for anyone who just wants to dispense with noisy 'spinners (hard drives) for main storage.
To put this enormous capacity into perspective, I am primarily a photographer, and all the images shot in my entire life will fit within the 16TB Thunderblade—and I shoot a lot and have more images than 99% of my readers.
Putting it into numbers: the 100-megapixel Fujifilm GFX100 produces 16-bit raw files that average 124MB each. Rounding the 15.36TB capacity to 15TB, the 16TB Thunderblade can hold 121 thousand raw files at 124MB each. For Sony A7R IV files, that figure rises to 242 thousand raw files at 61.9MB each. Very few photographers will push beyond that capacity but those that do can always buy a second Thunderblade, or tier their storage to high-capacity hard drives for older files.