Frequently Asked Questions about Thunderbolt 3
Thunderbolt 3 adopted the USB-C connection chiefly because it is compact. Although both technologies use the same connection, the compatibility between them is limited.
Please find downstairs answers to common questions regarding the Thunderbolt 3 interface.
How can I tell if my computer has a Thunderbolt 3 port?
Consult your calculator software documentation for Thunderbolt 3 compatibility. A Thunderbolt 3 port on a calculator is a USB-C port with the Thunderbolt icon, a lightning abscond next to it. See the image below :
How can I identify a Thunderbolt 3 cable?
A Thunderbolt 3 ( USB-C ) cable is reversible and identical on both ends. It has the Thunderbolt picture and the number 3 on the connection. See the trope below :
|Connector face||Cable end|
Are Thunderbolt 3 and USB 3.1 (USB-C) storage devices interchangeable?
- A Thunderbolt 3 computer port can support both Thunderbolt 3 and USB-C devices.
- A USB 3.1 (USB-C) computer port can only support USB devices.
Are USB 3.1 (USB-C) cables and Thunderbolt 3 cables interchangeable?
- Thunderbolt 3 cables support Thunderbolt 3 and USB 3.1 (USB-C) devices.
- USB 3.1 (USB-C) cables do not work with Thunderbolt 3 devices.
- A Thunderbolt 3 storage device requires a Thunderbolt 3 cable and a Thunderbolt 3 port on the computer.
What is the performance difference between USB 3.1 and Thunderbolt 3?
|Protocol||Theoretical burst transfer rate
Gigabits per second (Gb/s)
|USB 3.1 Gen 1||Up to 5 Gb/s|
|Powered USB 3.1 Gen 1||Up to 5 Gb/s|
|USB 3.1 Gen 2||Up to 10 Gb/s|
|Powered USB 3.1 Gen 2||Up to 10 Gb/s|
|Thunderbolt 3||Up to 40 Gb/s|
Is a Thunderbolt 3 storage device backwards compatible with Thunderbolt and Thunderbolt 2 computers?
Thunderbolt 3 engineering is backwards compatible with Thunderbolt 1 and 2, however adapters are required since Thunderbolt 3 uses a unlike interface than the former generations. additionally, some features unique to Thunderbolt 3 devices, such as charging capability, may not work when using adapters. Another important gene is that not all adapters are bi-directional, which means connecting adapters to Thunderbolt 3 devices may not function with Thunderbolt 2 or Thunderbolt 1 computers or vice-versa.
Some of our Thunderbolt storage devices have multiple interfaces ( e.g. Thunderbolt 3 and USB 3.1 ) so they can be used on systems that do not support Thunderbolt 3.
We powerfully recommend to always connect using Thunderbolt 3 when available to take full advantage of Thunderbolt 3 operation .
The device with Thunderbolt 3 must provide its own office. Since the LaCie Rugged SSD Pro does not provide its own power this device will not work with Thunderbolt 3 to Thunderbolt 2 adapters.
Note : We can not guarantee that all adapters will be amply functional with Thunderbolt 3 devices.
Are all Thunderbolt 3 (USB-C) cables created equal?
No, in fact, there are two types of Thunderbolt 3 ( USB-C ) cables, passive voice and active. passive cables cost less and can reach up to 40 Gb/s data remove if the distance is 0.5m or less and 20 Gb/s if over 0.5m. active cables can reach up to 40 Gb/s data transfer with a length of up to 2m .