Here is a guide from Sandisk that should help you. In Step 1, you can simply connect both drives using the system in the video that you provided, instead of, buying the USB to SATA adapter. Then, follow the remaining steps as stated. You can find cloning software free on the Internet. Here is just one of many:
https://www.macrium.com/reflectfree
This is the way that I normally add SSD's to my computer.
Please click the Thumbs up + button if I have helped you and click Accept as Solution if your problem is solved.