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Thunderbolt™ 3 USB-C® to Thunderbolt Mini DisplayPort™ Adapter Converter

#C2G29514 C2G
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$130.99 $206.99 MSRP $113.96 USD

The Thunderbolt 3 USB-C to Thunderbolt Mini DisplayPort Adapter Converter is the perfect solution for connecting a Thunderbolt 3 laptop to an older Thunderbolt Gen 1 or Gen 2 display or device.

Deliver data transfers at a rate up to 20Gbps, which is fully backward compatible with Thunderbolt Gen 1 and Gen 2 devices. This adapter is an ideal solution to transfer large amounts of information, such as high resolution photos or videos from Thunderbolt Gen 1 or Gen 2 storage devices, to your Thunderbolt 3 laptop.

The adapter's USB-C connector is smaller than traditional USB connectors. It features a symmetrical design that allows you to connect it on the first try. Additionally, the durability of the USB-C connector allows for up to 10,000 connection cycles. The dongle style reduces strain on the host laptop's USB-C port, preventing extra weight and pressure from damaging the port.

Note: The adapter supports a single direction, which means that you must have a Thunderbolt 3 host device, like a laptop connected to legacy Thunderbolt Gen 1 or Gen 2 displays and devices.

Connector 1:
(1) USB-C Male
Connector 2:
(1) Mini DisplayPort Female
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  • Connect older Thunderbolt Gen 1 and Gen 2 devices to a Thunderbolt 3 computer
  • Compatible with Thunderbolt Gen 1 and Gen 2 displays and devices
  • Supports Thunderbolt 2 data transfer rates up to 20Gbps
  • Reversible, symmetrical USB-C connector
  • Dongle-style adapter, which reduces strain on the connected USB-C port
  • Single direction, will not connect Thunderbolt 3 peripherals to Thunderbolt 1 or 2 computers
  WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov


General Info
Product Line C2G
Color White
UPC Number 757120295143
Country Of Origin China
Features Thunderbolt™ 3
Application Sector Commercial, Residential
Warranty Type Lifetime
Type Adapter
Product Width US 2.31 in
Product Depth US 3.49 in
Product Height US 0.63 in
Cable Length 5.51 in
Listing Agencies / 3rd Party Agencies
CE Certified Yes
FCC Compliant Yes
REACH Compliant Yes
Technical Information
Data Transfer Rate 20 Gbps


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Questions & Answers

Will this work between a Wacom MobileStudio Pro 16 (DTH-W1621H) USB-C Thunderbolt 3 (Windows 11) connected to an Apple 27 inch Thunderbolt 3 mini-dp display and use all ports on the monitor?

Asked by: GregS
According to the information online for item DTH-W1621H, The device needs to be connected to a Desktop. We don't believe the application above will work correctly.
Answered by: Tommy
Date published: 2024-04-01

Will this work with Thunderbolt 4 computers?

Asked by: Tom
Thunderbolt 4 technology is backwards compatible so you should be able to use this adapter. However, your performance across that adapter will be the specs of Thunderbolt 3 not the 4 that your port is.
Answered by: Thomas
Date published: 2023-10-02

will this device work with a M1 2022 MacBook Air connecting to a circa 2010 Apple mini displayport monitor?

Asked by: Heather
Yes this will work for this particular conversion.
Answered by: Thomas
Date published: 2022-03-01

Does this device work on a Windows Computer?

Asked by: Cris
Yes this will work on a Windows PC as long as it supports USB-C/Thunderbolt 3.
Answered by: Thomas
Date published: 2021-08-23
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