Caldigit dock TB pass thru slows next device down

Discussion in 'Mac Accessories' started by propower, Jan 11, 2014.

  1. propower macrumors 6502a

    Jul 23, 2010
    I got a Caldigit Thunderbolt dock and daisy chained a Blackmagic Multidock from it with a Samsun 840 pro 512G drive in the BM. The BM dock is a SATA II device.

    I tested the BM directly connected to my imac and speeds are:
    345MB/s - 380MB/s W/R

    When I daisy chain off the Caldigit (with nothing else in the Caldigit) I get
    250MB/s - 325MB/s W/R

    Any one else finding slowdowns when daisy chaining TB devices??
  2. paulrbeers macrumors 68040

    Dec 17, 2009
    You are sharing bandwidth and with the cal digit dock having video it's probably using a lot of bandwidth.
  3. HenryAZ macrumors 6502a


    Jan 9, 2010
    South Congress AZ
    I currently have this chain:
    Macmini (2011) -> Caldigit dock -> Areca TB drive array -> displayport monitor

    I have an 840 Pro (128 GB) in the Areca array as a pass-through drive, and it registers 385w/495r. I have not tested it without the Caldigit dock in the chain, however.

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