These cards are compatible with only Thunderbolt 2 or 3 PCIe expansion chassis; they are not compatible with Thunderbolt 1 PCIe expansion chassis (unless they have been upgraded to Thunderbolt 2).
1) Make a backup of the user folder
2) Copy the user folder to the SSD volume.
3) In System Preferences, open Users & Groups.
4) Unlock.
5) Right-Click on the user you moved to the SSD volume and select Advanced Options
6) Point the Home Directory to the user folder on the SSD volume.