Review on Yottamaster HC1: Dual Bay M.2 NVMe Docking Station with 10Gbps Cloning Capability and USB C 3.1 Gen2 for PCIe SSDs by Satish Greener

The instructions are a little lacking, but if you're familiar with replacing one of these in a laptop you should be fine. To create an extended volume, you need to use Disk Manager and remove some partitions so that the unallocated space can be merged. If you don't know what I'm talking about, don't try, the cover screw is very small, be careful!