APPLE THUNDERBOLT 3 (USB-C) TO THUNDERBOLT 2 ADAPTER - Dartmouth The Computer Store
StarTech.com TBT3TBTADAP Thunderbolt 3 to Thunderbolt 2 Adapter - Backward Compatible - USB C to Mini DisplayPort - USB-C to Thunderbolt 2 - Newegg.com
Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter - kite+key, Rutgers Tech Store
New Thunderbolt 3 To Thunderbolt 2 Adapter USB Type C Cable For Macbook Air/ Pro 967423093272 | eBay
Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter White MMEL2AM/A - Best Buy
Amazon.com: USB C Hub Adapter for MacBook Pro, Thunderbolt 3 Adapter,10-in-1 USB C Dongle with Gigabit Ethernet, USB C to HDMI VGA Adapter,100W Power Delivery,3 USB 3.0, SD TF Card Reader-Through Port
Kanex KTU10 Thunderbolt to USB 3.0 & eSATA Adapter - Bstock (used/worn box)
USB-C to USB 3 Female Adapter
Adapters for the Thunderbolt 4, Thunderbolt 3, or USB-C port on your Mac - Apple Support