I forgot to mention that the load is such that I can't use an external multi-port hub to plug two devices into one usb port. I've tried it and
it doesn't work. Each device needs to be on its own internal hub.

Right now I have a 5Tb USB 3 HD drive as a music source on one port and
an iFi DAC on another so I'm ok for now. The problem will occur if I
need to add a bootable drive for an alternate OS.

The software won't run on Catalina or later so I am running Mojave and I
have Mojave on a bootable SSD if I have to upgrade. Before you suggest
it, Parallels doesn't work either for this application.

One solution I may have to consider but don't want to is buying another computer just to support this stuff.

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Wow did I misspell that!

I'm looking for a thunderbolt to usb adapter.

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I have a MacBook Pro which has only two USB 3 ports and I need to attach
three USB devices. It also has two Thunderbolt 2 ports. Does anybody
make an adapter that would allow me to plug the USB device into the
thunderbolt port?

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On 2021-11-06 20:45:10 +0000, Robert Peirce said:

I forgot to mention that the load is such that I can't use an external multi-port hub to plug two devices into one usb port. I've tried it
and it doesn't work.

Was it a powered hub (power via wall socket) or just unpowered (power
from the computer ports)? Powered hub is often better for "high drain"
devices.

Even with an unpowered hub, you can sometimes get around it by getting
more power using a double-plug from the computer's ports into the hub,
or double-plug from the hub into the external device.

Each device needs to be on its own internal hub.

Right now I have a 5Tb USB 3 HD drive as a music source on one port and
an iFi DAC on another so I'm ok for now. The problem will occur if I
need to add a bootable drive for an alternate OS.

Make sure your Mac can actually boot from an external drive before
spending money though.

The software won't run on Catalina or later so I am running Mojave and
I have Mojave on a bootable SSD if I have to upgrade. Before you
suggest it, Parallels doesn't work either for this application.

One solution I may have to consider but don't want to is buying another computer just to support this stuff.

Another option might be to plug the music drive into your network
router/modem. Some will work happily that way, but others don't.

Or get just one bigger external drive and partition it into two smaller ones.

--- SoupGate-Win32 v1.05
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On 06/11/2021 23:38, Your Name wrote:

On 2021-11-06 20:45:10 +0000, Robert Peirce said:

I forgot to mention that the load is such that I can't use an external
multi-port hub to plug two devices into one usb port.  I've tried it
and it doesn't work.

Was it a powered hub (power via wall socket) or just unpowered (power
from the computer ports)? Powered hub is often better for "high drain" devices.

Even with an unpowered hub, you can sometimes get around it by getting
more power using a double-plug from the computer's ports into the hub,
or double-plug from the hub into the external device.

The Caldigit Element might work. It is powered, and it looks very
similar to another couple of devices from OWC and (memory fails), so
they're probably all coming from the same Chinese factory.

--
Chris

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Ask Mozilla about Thunderbird? [grin] ;)

Robert Peirce <bob@peirce-family.com> wrote:

I have a MacBook Pro which has only two USB 3 ports and I need to attach three USB devices. It also has two Thunderbolt 2 ports. Does anybody
make an adapter that would allow me to plug the USB device into the thunderbolt port?

--
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