iMac 2017 with FusionDrive - Best external SSD solution?

Discussion in 'iMac' started by AmselDamsel, Jun 22, 2017.

  1. AmselDamsel macrumors newbie


    Jun 22, 2017
    Hi there,

    I had to buy a retail version which means that I wasn't able to chose a SSD/CTO-Version and had to stick with the 2 TB Fusion Drive. My new iMac will be delivered in a few days and since I replaced my iMacs (Late 2009) Superdrive with an SSD I'm already questioning the speed of the new device :D

    Therefore, I thought it would be a good solution to install the OS (or/and Bootcamp) on an external SSD via Thunderbolt. The internal fusion drive would serve as data storage for photos, projects and videos.

    My questions are:

    Is there a different/faster option than a Sandisk Extreme 900 which is using USB 3.1 Gen 2?

    I'm wondering if something like a "SSD bay" exist which has the same speed/reliability - it would be nice if I can have multiple SSDs on one TB3-Port because I need the other port for my second monitor. I just found some RAID systems, but I guess that I have to pay for features I don't need. Would be nice to have one SSD for MacOS and one for bootcamp ;)

    I already found some 2.5" cases on Amazon Germany which are supporting USB 3.1 Gen 2. Are there any drawbacks when using such a case with a standard SSD in comparison to the extreme 900? It seems to be much cheaper, but the market here is already flooded with china stuff...
  2. EugW macrumors 601


    Jun 18, 2017
    I would leave the OS on the Fusion drive. That's what the built-in SSD is for after all.

    But personally, I went with a 1 TB SSD. If I want extra storage I can put that on an external drive.
  3. theitsage Suspended

    Aug 28, 2005
    If best solution means no constraint on pricing, you can go for Thunderbolt 3 NVMe flash storage. For example, pairing a Samsung 960 EVO with and AKiTiO Thunder3 will surpass 2,000 Mbps read speed. It's also bootable.

    The AKiTiO Thunder3 in particular has a second Thunderbolt 3 port for daisy chaining. Its DisplayPort is also useful for Display passthrough.


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