StarTech.com

Thunderbolt 3 to Thunderbolt Adapter - Windows and Mac

Use first-generation Thunderbolt and Thunderbolt 2 devices with your new Thunderbolt 3 computer

Product ID: TBT3TBTADAP

  • Cost-effective solution for connecting older Thunderbolt peripherals to newer Thunderbolt 3 laptops or computers
  • Compatible with first-generation Thunderbolt and Thunderbolt 2 devices
  • Thunderbolt Certified
  • Supplies power for bus-powered devices
$119.99 USD
794+ In stock
In stock
US: 771 | CA: 23
794+
In stock
Where To Buy
Same Day Shipping on in-stock items from USA if ordered by 5pm ET* Details

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Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Cable Jacket Type PVC - Polyvinyl Chloride
Cable Shield Type Aluminum-Mylar Foil with Braid
Connector Plating Nickel
Performance
Maximum Data Transfer Rate 10 Gbps (Thunderbolt 1)
20 Gbps (Thunderbolt 2)
Connector(s)
Connector A 1 - Thunderbolt™ 3 USB-C (24-pin) (40Gbps) Male
Connector B 1 - Thunderbolt™ 2 (20 pin) Female
Software
OS Compatibility Windows 8.1, 10
macOS 10.12 - 10.15
Special Notes / Requirements
Note This adapter is compatible with Thunderbolt™ displays only. It will not work with Mini DisplayPort (mDP) or DisplayPort (DP) monitors.
This is an 'Active' adapter cable. Any host system that doesn’t provide the full 15W of bus power won’t work with this device. Consult the manufacturer of your host system to determine how much bus power your host system provides.
TBT3TBTADAP can pass 12W of power through the Thunderbolt 2 port
Physical Characteristics
Cable Length 7.9 in [20 cm]
Color Black
Product Height 0.6 in [1.6 cm]
Product Length 11 in [28 cm]
Product Width 2.3 in [59 mm]
Weight of Product 2 oz [58 g]
Packaging Information
Package Height 1 in [25 mm]
Package Length 7 in [17.8 cm]
Package Width 3.2 in [82 mm]
Shipping (Package) Weight 3 oz [86 g]
What's in the Box
Included in Package 1 - Thunderbolt™ 3 to Thunderbolt Adapter

Compatibility

View full OS compatibility
Windows 8.1, 10
macOS 10.12 - 10.15

Certifications

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Thunderbolt 3 to Thunderbolt Adapter - Windows and Mac

Customer Reviews

3 (8 reviews)
3 out of 5 stars
Quality of Product
0.6
Tell us what you think of this product.


Need a little help getting started? Check out our review guidelines.

1 - 8 of 8 Reviews

(1 star) Not Working on WIndows10?

By: Hanzo
I have Dell XPS surely equipped with TB3. After connecting, it shows the device as "legacy adapter" but it does not connect me to the TB2 devise connected to the adapter as if it does not exist. There is no manual nor any information which I can refer to judge whether if it is working properly or not....
Comment Helpful? Yes - 0 No - 0 Report
Response from StarTech.com:
Matt, Customer Support
We're sorry to hear about the problems you're having with our TBT3TBTADAP. Often this can be solved by checking your Thunderbolt software and ensuring the adapter is set to be connected. You may also need to update the drivers and firmware for the Thunderbolt 3 controller in your PC. If you require assistance, please feel free to contact us at www.startech.com/support where our Technical Advisors are available 24 hours a day, 5 days a week to provide support.

(1 star) Does not Work

By: edgarmontez
I got this, because UAD say is compatible to plug to a Windows pc, hours i been trying to get it work, does not
Comment Helpful? Yes - 0 No - 0 Report
Response from StarTech.com:
Matt, Customer Support
We're sorry to hear about the difficulties you're experiencing with our TBT3TBTADAP. This adapter converts a Thunderbolt 3 port on a computer to a Thunderbolt 2 device. It is compatible with both Windows and macOS, however, it will not work if the port on your computer is basic USB-C and not true Thunderbolt 3. We'd be happy to look into this further with you. Please contact us at www.startech.com/support where our Technical Advisors are available 24 hours a day, 5 days a week to provide support.

(2 stars) Kind of works, but...

By: JeffMc
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.
Comment Helpful? Yes - 1 No - 0 Report
Response from StarTech.com:
Matt, Customer Support
Hello Jeff, We're sorry to hear about the difficulties you're having with our TBT3TBTADAP. It sounds like there may be an issue with hot-swapping the adapter or audio equipment. One of our Technical Advisors will be reaching out to you with the email provided to troubleshoot further.

(5 stars)

By: Daskeladden
Comment Helpful? Yes - 1 No - 0 Report

(1 star) Doesn't Work For Me

By: BobEvenson
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.
Comment Helpful? Yes - 1 No - 0 Report
Response from StarTech.com:
Sam, Customer Service
Thank you for sharing your feedback on our TBT3TBTADAP. We apologize that it hasn't worked for you and would like to help. We recommend contacting us directly so that we can find out the problem and get your setup working as quickly as possible. You can reach one of our Technical Advisors 24 hours a day, 5 days a week, at 1-800 265-1844 or www.startech.com/chat

(5 stars)

By: bradF
Comment Helpful? Yes - 1 No - 1 Report

(4 stars) Continue using Thunderbolt 2 with new PCs

By: joevt1
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.
Comment Helpful? Yes - 11 No - 2 Report

(5 stars) Great Adapter

By: BobbyG
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.
Quality of Product (5/5)
Comment Helpful? Yes - 7 No - 3 Report
By: Anonymous
Does not work to connect to imac thunderbolt port as display adapter. Tried off my dell xps 13, and cannot get the Imac to go into target display mode.
Helpful? Yes - 0 No - 0 Report
By: Anonymous
Does not work to connect to imac thunderbolt port as display adapter. Tried off my dell xps 13, and cannot get the Imac to go into target display mode.
Helpful? Yes - 0 No - 0 Report