Quick tech specs
  • Thunderbolt 3 to Thunderbolt 2/Thunderbolt adapter lets you connect older TB2 (20Gbps) and TB1 (10Gbps) peripherals to a TB3 host
  • Ability to use older Thunderbolt displays w/ Certified Thunderbolt 3 laptops
  • Will not connect TB3 peripherals to computers w/ TB1/TB2 ports
  • Thunderbolt 3 certification assures compatibility w/ TB3 certified laptops; TB3 host required
  • TB3 to TB2/TB1 converter is bus-powered / provides up to 12W of power for peripherals / Windows macOS / 7.9" attached cable
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Know your gear

With this Thunderbolt 3 to Thunderbolt 2 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.

Fast, Reliable Performance
Take full advantage of your current peripherals! Saving you the added expense of purchasing new devices, the USB-C to Thunderbolt adapter cable lets you connect your existing devices through your TB3 port.

Connection Possibilities
With this adapter’s backward compatibility, you can connect to first-generation Thunderbolt devices at 10 Gbps speed and to your TB2 devices at 20 Gbps. The adapter satisfies all requirements for bi-directional data transfers and simultaneous power for bus-powered devices.

Please note that while this converter does fit Mini DisplayPort devices, it will not work with Mini DisplayPort or DisplayPort monitors.

The TBT3TBTADAP is backed by a 2-year warranty for guaranteed reliability.

Availability: 32 units In Stock

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Current Item Thunderbolt 3 to Thunderbolt 2 / 1 Adapter - TB3 to TB2 20Gbps

This Item: Thunderbolt 3 to Thunderbolt 2 / 1 Adapter - TB3 to TB2 20Gbps


Total Price: Thunderbolt 3 to Thunderbolt 2 / 1 Adapter - TB3 to TB2 20Gbps is rated 3.60 out of 5 by 8.
Rated 5 out of 5 by from Works great Works great with Apple Thunderbolt display and a P50 Lenovo. Thank you!
Date published: 2019-12-29T00:00:00-05:00
Rated 5 out of 5 by from Kind of works, but... If external device (I use audio interface) is powered after computer is booted up, it's not recognized and there is no way to rescan for attached devices. Have to either restart the computer or unplug and re-plug StarTech device. Annoying.
Date published: 2019-06-03T00:00:00-04:00
Rated 5 out of 5 by from Doesn't Work For Me Tried to connect a BMD video capture device (T-Bolt2) to a new iMac 27 (T-Bolt3) and will not read the capture device. Updated all firmware and still a no go. Should have gone with the Apple TBolt3 to Tbolt2 dongle.
Date published: 2018-01-27T00:00:00-05:00
Rated 5 out of 5 by from Great Adapter Works out of the box and does exactly what the product description says it will do. I ordered this as soon as it was available, and it has solved my problem of connecting TB2 devices to my TB3 port on the Dell XPS computer.
Date published: 2016-06-30T00:00:00-04:00
Rated 5 out of 5 by from Continue using Thunderbolt 2 with new PCs Allows using Thunderbolt 2 devices with newer PCs that have Thunderbolt 3 ports. I've tested it and it just works. This adapter does not allow using Thunderbolt 3 devices with Thunderbolt 2 computers though, unlike the much less expensive Apple adapter. Note: For mini DisplayPort, use a USB-C to DisplayPort cable instead.
Date published: 2017-05-04T00:00:00-04:00
Rated 5 out of 5 by from Works well with UAD-2 Satellite! 325 / 5000 Risultati della traduzione Thanks to StarTech TBT3TBTADAP now my Universal Audio UAD-2 Satellite Octo Core works fine connected to my DELL 7577 (TB3) Laptop. I would just like to know if I can cascade a second TB2 device to my UAD-2 Satellite Octo which has two TB2 ports (One already used for the StarTech TBT3TBTADAP). Thanks, Carlo
Date published: 2021-01-03T00:00:00-05:00
Rated 5 out of 5 by from Worked ok at first but stopped working I tried to reinstsall the driver but it doen't appear in device manager
Date published: 2021-08-12T00:00:00-04:00
Rated 5 out of 5 by from Works on XPS 13 Got this to connect my XPS 13 from 2016/2017 to my 27" thunderbolt Apple monitor. It worked straight out of the box. However I have a Dell TB16 dock as well. Tried using that as well. So the dock's usb-c connector goes into the XPS, and the Startech adapter goes from the dock to the Thunderbolt monitor. That didn't work: I needed to update the BIOS, Thunderbolt firmware, thunderbolt driver, and installed I believe the latest thunderbolt application from the Intel website. Everything works now, even the audio and usb ports on the monitor. (facetime camera doesn't work, since it can't find a driver). All in all good buy, but I can't connect my 2019 macbook Pro to my thunderbolt monitor with the startech adapter. Monitor does not activate. Seems to only work with Windows machines.
Date published: 2020-11-25T00:00:00-05:00