Thunderbolt 2 port to connect to an external drive which is Type C based

Dear Professional, I just bought a Samsung T5 external SSD it is a USB type C based port. I am using mac book pro early 2015 version which only provided with thunderbolt 2. I would like to connect and transfer data with high speed, so I wish to use the thunderbolt 2 port on my Mac to the external hard drive which is USB type c based. Is that any solution for it?

Thank you!

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2 Answers from the Community

  • I have thunderbolt 2 devices. Macbook Pro (2012) and Imac 4k 27" (2015). I want to start buying thunderbolt 3, bus powered, external SSD's and connect to my current devices via thunderbolt 2. When using an adaptor the speed will default to slower of the two ie thunderbolt 2; which is fast enough. The question is the same and not answered in the response. Will the thunderbolt 3 bus powered SSD connect to and be bus/get thunderbolt 2 speeds when plugged in to the thunderbolt 2 port of both macbook pro and imac. I just got off the phone with apple support and they had no answer (which is crazy). Does anyone out there have the answer/have they tried this or will I be the only person in the world to try this?

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  • The Samsung T5 SSD has a USB 3.1 gen 2 USB-C port (up to 10 Gb/s) and the description says the drive can do about 540 MB/s.

    The Thunderbolt 3 to Thunderbolt 2 adapter is only for Thunderbolt devices, so you cannot use it to directly connect the Samsung T5 SSD (which uses USB, not Thunderbolt).

    The MacBook Pro 2015 has USB 3.0 ports supporting up to 5 Gb/s which should allow something like 450 MB/s. If that speed is good enough, then you can simply use the USB-A to USB-C cable that is included with the Samsung T5.

    Otherwise, the only way to get USB 3.1 gen 2 for the MacBook Pro 2015 is to connect a Thunderbolt 3 device that has two Thunderbolt 3 ports using the Apple Thunderbolt 3 to Thunderbolt 2 adapter. USB 3.1 gen 2 requires macOS Sierra or later.

    I don't believe that any currently existing Thunderbolt 3 device supports USB 3.1 gen 2 except through one of their two Thunderbolt 3 ports. This means that the USB-C hard drive needs to be the last device in the Thunderbolt 3 chain.

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