Use first-generation Thunderbolt and Thunderbolt 2 devices with your new Thunderbolt 3 computer&lt;br/&gt;&lt;br/&gt;With this adapter you can connect Windows and Mac based Thunderbolt 3 computers to older Thunderbolt devices such as external hard drives Thunderbolt displays and older Thunderbolt capable Mac computers.&lt;br/&gt;&lt;br/&gt;Because this adapter is backward compatible you can connect to first-generation Thunderbolt devices at 10Gbps speed. With Thunderbolt 2 devices you can connect at 20Gbps. The adapter satisfies all requirements for bi-directional data transfers and simultaneous power for bus-powered devices.&lt;br/&gt;&lt;br/&gt;The TBT3TBTADAP is backed by a 2-year warranty for guaranteed reliability.&lt;br/&gt;&lt;br/&gt;Your computers Thunderbolt 3 ports might not function properly until you update one or more of the following on your computer:&lt;br/&gt;&lt;br/&gt;BIOS&lt;br/&gt;&lt;br/&gt;Thunderbolt firmware&lt;br/&gt;&lt;br/&gt;Thunderbolt 3 controller drivers&lt;br/&gt;&lt;br/&gt;Thunderbolt 3 software&lt;br/&gt;&lt;br/&gt;The required updates will vary depending on your computer.&lt;br/&gt;&lt;br/&gt;For an up-to-date list of affected computers and instructions visit http://thunderbolttechnology.net/updates. If your manufacturer isnt listed on the Thunderbolt website contact your manufacturer.&lt;br/&gt;&lt;br/&gt;The StarTech.com Advantage&lt;br/&gt;&lt;br/&gt;- THUNDERBOLT 3 TO THUNDERBOLT ADAPTER: This converter lets you connect older TB2 (20Gbps) and TB1 (10Gbps) peripherals to a TB3 host; connect TB1/TB2 devices like docks or external storage drive bays&lt;br/&gt;- 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&lt;br/&gt;- COMPATIBLE WITH THUNDERBOLT DISPLAYS: This TB3 to TB2/TB1 adapter enables use of older Thunderbolt monitors (27&quot; Apple Thunderbolt Displays/LG Ultrawide TB2 display) w/ certified Thunderbolt 3 laptops