My Cloud Gen 2 vs Gen 1

My Cloud OS 3 Personal & Network Attached Storage My Cloud
3

You can do a search on the forum for My Cloud Gen2 and find all sorts of info

https://community.wd.com/t/difference-between-mycloud-gen1-and-gen2/161761

https://community.wd.com/t/unable-to-create-a-backup-from-one-my-cloud-gen2-to-another-identical-my-cloud/150820

https://community.wd.com/t/usb-backup-ver2-x-gen2/148741