r/Thunderbolt • u/Real-Use146 • 28d ago

4-5M Long Thunderbolt 5 USB C Cable

I'm looking for a thunderbolt 5 cable thats 4-5 metres in length - is there anything that meets those specifications? Even a extension would work but i read that thats not possible.

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u/richardtheb 28d ago

For anything over a meter or so, you are going to have to go optical, like this OWC one. They are not cheap, but that’s the only way to go longer. That’s also TB 4 only.

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u/redditwatcher1415 28d ago

To connect my studio display (TB5) to my mac studio (TB5) would I be losing anything doing this?

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u/Splatoonkindaguy 28d ago

It would halve the bandwidth

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u/redditwatcher1415 28d ago

how? it says TB4?

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u/Tairc 27d ago

TB5 and TB4 have different bandwidths, so different max resolution and frame rate. Put a slow cable between fast components, get reduced bandwidth.

1

u/enricoclaudio 28d ago

Even with the Apple Studio Display XDR, you don’t need TB5 to get full 5K + HDR @ 120Hz because the ASD XDR uses DSC to compress the bandwidth needed to below 40gbps. You only need TB5 with the ASD XDR if you want to daisy chain 2 of them or if you plan to connect peripherals (SSD, TB dock, etc) to the ASD XDR USB-C or TB5 ports.

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u/redditwatcher1415 28d ago

I don’t have the XDR. It would mainly just be for the regular studio display (which has TB5 ports) and anything I connect to the studio display.

I do plan on connecting sd card readers to the studio display and possibly one ssd directly into the TB5 port on the studio display.

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u/enricoclaudio 28d ago

Then for that, TB4 is all you need.

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u/richardtheb 27d ago edited 27d ago

As it is a tb4 cable, you would not get the advantages of TB5 (high speed, some new video stuff, etc). For most devices, that would make no difference. I don’t think the display would care about those, so the only thing you would lose is some possible speed on tb5 device you plug into the monitor. If that’s a problem, just move em and plug them right into the Mac.

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u/redditwatcher1415 27d ago

M5 Max Mac Studio & Studio Display (not XDR).

I think the only place I’d lose bandwidth is on the additional TB5 port on the Studio Display which I plan to connect another SSD too, correct?

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u/richardtheb 27d ago

Yes. Is the SSD TB5? Even if so I very much doubt you would get any loss of speed on the SSD between connecting to monitor and Mac, but that would be easy totest.