Turns out that drive, just discovered today, from Seagate facebook rep, did have a pot of micro 3 type on the drive in back. So black did not see port, assumed -- got two very visible Type A ports so you'd assume those go into computer. They are a 'hub", no idea that that is, external drive hub.
That means you can
daisy-chain other USB devices through the drive enclosure. That could be virtually any USB device of any kind although they will always operate at the USB 3.0 (5 Gbps) and cannot expect more than 5 watts of power through the USB connection.
Still so know can be used. Not sure still keep it, as old-style vs new style C... may keep/ may return.. but yeah, after a few days I can now see how works..
If you use the drive and then return it, don't forget to erase it before returning. I would suggest using a secure-erase.
BTW, got: 3 of newer Lacies d2, which still waiting for right converters for and 1 old style seagate ..... both of these brought mass confusion, but think sorted it out now..
Odds are the LaCie enclosures have Seagate drives.