what to buy for Thunderbolt iMac (late 2015)

Discussion in 'Buying Tips and Advice' started by ribbo1939, Aug 13, 2019.

  1. ribbo1939 macrumors member

    Joined:
    Feb 8, 2009
    Location:
    Australia
    #1
    Hi all,
    My iMac (Retina 5k, 27 inc, late 2015 - has a spare thunderbolt 2 port. What I would like to do is use an external SSD as a backup . I get the impression that I can't do that as t/b2 doesn't have power and that
    I would need to obtain a powered SSD.
    All I have found are USB-C external SSDs but can't connect to my iMac.
    Has anyone any useful ideas and tips please?

    Alan
     
  2. mroy16 macrumors regular

    Joined:
    May 28, 2017
    #2
    A USB external drive (HDD or SSD) is plenty for a backup drive. There's no need to go to TB bandwidth.
     
  3. monokakata macrumors 68000

    monokakata

    Joined:
    May 8, 2008
    Location:
    Hilo, Hawai'i
    #3
    A 2.5" SSD in an external enclosure won't require external power, whether it's TB* or USB3. I have SSDs in both kinds of enclosures and they worked as expected with my old late 2014 5k iMac, and even today work great with a TB2 Macbook Pro.

    On the connectivity front, there are many USB-A --> USB C cables. I mean literally a single cable. Not a dongle. I have several and they work as expected.
     
  4. ribbo1939 thread starter macrumors member

    Joined:
    Feb 8, 2009
    Location:
    Australia
    #4

    Hi,
    My SSDs (2 of them) are in their enclosures which are USB-c connected. I have tried a T/B 2 to TB/3 adapter using a USB-c cable but nothing connects. When I connect to the iMac via usb3 cable they work brilliantly, I was hoping I could utilise the spare TB2 port on my iMac. The other TB2 port is being used to run a TB 2 dock which also has a spare TB2 port but still am unable to use the adapter there.
     
  5. monokakata macrumors 68000

    monokakata

    Joined:
    May 8, 2008
    Location:
    Hilo, Hawai'i
    #5
    Sorry, I was unclear. What I should have said was that I have a couple of SSDs in USB3 enclosures and they worked great with USB3 type A ports on my old iMac. And I have one enclosure that's TB2 and it worked fine in the old iMac and also with the new iMac, using a TB3/TB2 adapter.

    I'm pretty sure there's no way to go from TB2 to USB-c.
     

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4 August 13, 2019