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Is my CalDigit Thunderbolt 3 device compatible with Apple Thunderbolt 1 and 2 computers?

Is my CalDigit Thunderbolt 3 device compatible with Apple Thunderbolt 1 and 2 computers?

The CalDigit Thunderbolt 3 devices, such as TS3 Plus, TS3, TS3 Lite, T4 Thunderbolt 3 RAID are backward compatible with legacy Thunderbolt 1 and 2 computers.

An adapter from Apple is required to convert from Thunderbolt 3 to Thunderbolt 2 protocols. A Thunderbolt 2 cable is also required in this setup.

A photo of a Thunderbolt 2 cable connected to the Apple Thunderbolt 3 to Thunderbolt 2 adapter which is plugged into the TS3 Plus.

This adapter will also enable your legacy Thunderbolt 1 and 2 computers to make use of many functions that Thunderbolt 3 has to offer including a dual extended monitor setup if it is supported by the computer’s GPU. The laptop charging feature however is not implemented in the legacy Thunderbolt computers.

Please notes that Apple’s Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter does NOT support bus powered Thunderbolt 3 devices directly, such as CalDigit Tuff X and Thunderbolt 3 mini Docks. All bus-powered Thunderbolt 3 devices should be connected to the Thunderbolt 3 computer directly or to a dual-port Thunderbolt 3 device such as TS3 Plus using Apple’s adapter to convert to the Thunderbolt 1 / Thunderbolt 2 computer.

Additional Information:
Is my CalDigit Thunderbolt 2 devices compatible with Apple Thunderbolt 3 computers?
About the Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter

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Due to the ongoing COVID-19 epidemic and California’s statewide “Stay at home” order, CalDigit’s Sales and Support teams are working from home to ensure the safety of our employees. We do not expect any slowdown in responding to customers but please contact us via email and online chat rather than phone calls during this time for a faster response to your enquiries. Orders placed directly from CalDigit online stores can still be processed immediately.

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For an optimal experience please have your product name, serial number, and operating system on hand prior to contacting support.

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