Blackmagic Forum

Hi there,

I use an ultrastudio 4kmini currently to do the following
- UHD HDR SDI out
- UHD SDR Trim out
- UHD HDR SDI in
- UHD HDR SDI Out (loop)
- UHD HDR HDMI Out
- 2x XLR Analogue Audio Out

It is currently running on its own dedicated Thunderbolt 3 bus from a Mac Pro and running great.

I am planning on changing setups to use Longer Optical Thunderbolt 3 cables and would be daisy chaining the above off a thunderbolt 3 dock also driving 2x 1440P displays and some USB devices/portable drives.

I am just wondering if this could pose any issues? Or would I be best to run 2 cables with one dedicated for the ultrastudio 4k mini?

Should be still ok, but it depends on TB3 controller and actual implementation.
https://macperformanceguide.com/blog/20 ... width.html

Monitors goes over dedicated channel compared to data (and BM will be using data channel as far as I understand).

Buy a good cable. Not every certified TB3 cable seams to deliver the same rates.
OWC and Caldigit have some new cables out (TB3) that support 100W power but are pricy.

I have some cheaper ~20-30€ 2-metre cables, OWC/Calldigit out-performe them with the same "specs".

400€+ for the optical cables is something.

Daniel Scherber wrote:Buy a good cable. Not every certified TB3 cable seams to deliver the same rates.
OWC and Caldigit have some new cables out (TB3) that support 100W power but are pricy.

I have some cheaper ~20-30€ 2-metre cables, OWC/Calldigit out-performe them with the same "specs".

400€+ for the optical cables is something.

yeah I dont really have a choice with the optical cables, corning seems to be the only player in town. machine room is about a 20m cable run away. Im just going to run 2 cables, 1 for the ultra studio and 1 for the monitors/usb over an OWC dock

thanks for the replies guys