COMPATIBILITY NOTE: This Thunderbolt 3 to Thunderbolt 2 adapter is NOT BIDIRECTIONAL and will not connect TB3 peripherals to computers with TB1/TB2 ports; This adapter is not compatible w/ Mini DisplayPort / DisplayPort monitors or Thunderbolt 4 computers THUNDERBOLT 3 TO THUNDERBOLT ADAPTER: Enables Thunderbolt 3 laptops to connect with older Thunderbolt 2 (20Gbps) and Thunderbolt 1 (10Gbps) peripherals; Connect TB1/TB2 devices like external storage drive bays, or Thunderbolt Displays to your TB3 laptop THUNDERBOLT 3 CERTIFIED: Compatible w/ TB3 certified laptops like MacBook Air & MacBook Pro, Dell XPS 13 & 15, Latitude, Precision, Lenovo ThinkPad X1, P series, HP EliteBook; Requires TB3 host (laptop or desktop must be equipped with Thunderbolt 3 port) TECH SPECS: Bus-powered; Provides up to 12W of power for peripherals; Features a physical Mini DisplayPort connector but it is not capable of adapting to mini DisplayPort / DisplayPort signal; Only compatible w/ Thunderbolt peripherals; 8in built-in cable COMPATIBLE WITH THUNDERBOLT DISPLAYS: This TB3 to TB2/TB1 adapter enables use of older Thunderbolt monitors (27" Apple Thunderbolt Displays/LG Ultrawide TB2 display) w/ certified Thunderbolt 3 laptops; Windows and macOS compatible