Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter
Thunderbolt™ 3 USB-C® to Thunderbolt Mini DisplayPort™ Adapter Converter | USB-C Adapter Converters | USB-C Cables, Adapters, and Hubs | USB and PC
Amazon.com: USBCele USB-C (Thunderbolt 3) to Mini DisplayPort Adapter, USB Type C to Mini Display Port 4K Cable Adapter for MacBook Pro, iMac, LED Cinema Display and More : Electronics
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IOGEAR - GTC3DEU - Thunderbolt 3 to eSATA and USB Adapter