Although I couldn't find an official spec that lists the specific controller inside this SanDisk Extreme Pro external SSD, it must surely be the use of a new controller that allows this drive to ...

If you're upgrading your SSD, you can turn your old one into a fully functioning external storage drive for your devices using a storage enclosure ...

SanDisk's Pro-Blade is a modular SSD system for professionals who need or desire additional external storage. Compared to having separate individual external SSDs, the modular system makes it easy ...