I picked this up used a while back for a project to use it as a hub for when I daisy chained a bunch of thunderbolt/2 stuff together , works fine, drives are healthy with no smart data alerts. Currently set up in JBOD, each 500gb drive mounts individually, this can be changed on a Mac to raid 0 or raid 1 later but I don’t remember how and I didn’t need to. No ac adapter or thunderbolt cord included, you will only get the drive in the pictures without those, it was just connected to demonstrate functionality.