Sonnet designed the Fusion PCIe Flash Drive around a Gen 3 M.2 PCIe SSD module, the fastest standard SSD type now available and capable of maximizing the bandwidth of the included 20Gbps Thunderbolt 2 interface. One single memory stick provides all the bandwidth necessary for the device to sustain ultra-high file transfer speeds—fast enough to support RAW 4K workflows.
http://www.sonnettech.com/product/fusionpcieflashdrive.html
I was trying to figure out if I could find an enclosure without an SSD in it to pair with a Samsung 960 Pro and the best I could come up with was buying the 256GB Fusion and trying to replace the SSD inside.
Not certain it would work but I'd love to know what others think.