TweakTown reviewed the CalDigit Tuff Nano 1TB Portable SSD
A quote from the article:
The Tuff lineup from CalDigit initially started as a 2.5" form factor portable hard drive. This eventually evolved into several solid state models being introduced. And more recently, the launch of the Tuff Nano, a small form factor portable SSD. The Tuff Nano was originally introduced in November in a single 512GB capacity, and now roughly four months later, we have the addition of a 1TB model.CalDigit Tuff Nano 1TB Portable SSD Review
The Tuff Nano is built with performance in mind with NVMe as its backbone carried though with USB 3.2 Gen 2. Connectivity is offered through the USB-C port with backward compatibility maintained via C to A cables.