StarTech.com TBT3TBTADAP Thunderbolt 3 to Thunderbolt 2 Adapter - Backward Compatible - USB C to Mini DisplayPort - USB-C to Thunderbolt 2 Thunderbolt Cables & Adapters - Newegg.com
Thunderbolt to eSATA + USB 3.0 Adapter - Thunderbolt Hubs & Adapters | StarTech.com
Original Official for Apple Thunderbolt 3 USB-C to Thunderbolt 2 Adapter Converter Cable MMEL2 A1790 White