Connect new monitor with USB ports to Thunderbolt 2 port?

Hello,


I have PC and a Mac that I'd like to use interchangeably with the peripherals in my home desk setup. I have a PC for work and a Mac for personal use. I'd like to be able to swap my monitor, mouse, keyboard, etc. easily between the two computers, since I use both every day. My office space is small and I don't have room for separate monitors and peripherals for the two computers.


This would be super easy, *except* that my Macbook is older and only has Thunderbolt 2 ports, whereas my work computer and monitor are newer and all run on USB-C. I have identified three potential strategies to try to swap my peripherals:


1) Dongle-palooza. I have a USB-C docking station that combines all the peripherals, and power, into a single USB-C connection that I am able to connect to my work computer. I can't find any adapters online that will take the USB-C output of this docking station and convert it to Thunderbolt 2 output, which suggests that it can't be done. But, it is physically possible to make the connection if I put a Thunderbolt 2 cable into my Mac, then a Thunderbolt 2 to USB-C dongle, which Apple sells, then a USB-C female-to-female connector. So, that silly combination of dongles and cables will get the USB-C connection to plug into the Thunderbolt 2 port, but I'm not sure if any of the display or USB peripheral information will make it through that Rube Goldberg setup. I don't want to drop $100 on cables and adapters just to find out it doesn't work. My suspicion is that if this was possible, the adapter would already exist.


2) Thunderbolt 2 dock. There are many Thunderbolt 2 docking stations available, but I haven't found any that accept USB-C input. Which again suggests, like the adapter solution above, that USB-C can't be routed through Thunderbolt 2.


3) Use the USB ports on the monitor. This isn't an ideal solution since the monitor only has two USB ports, but I could plug my mouse and keyboard into the monitor *if* I'm able to find a way to connect the monitor to my MacBook that also carries the USB data from the monitor. The monitor has USB-C, HDMI, and Displayport connections. USB-C doesn't seem to be an option (same issue as above). My Mac has an HDMI port, and HDMI works for carrying the display information, but it doesn't seem to carry USB information (i.e. the mouse and keyboard don't work). That leaves Displayport. Does Displayport carry USB information? And if so, is there a way to convert from Displayport to Thunderbolt 2 and retain that USB information?


Thank you very much,

Adrian

MacBook Pro 13″, macOS 10.15

Posted on May 8, 2022 9:58 AM

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Posted on May 8, 2022 5:13 PM

I don't see a risk-free way to try to hook it up "One cable". You could obtain a genuine ThunderBolt-3 Dock, an Apple ThunderBolt-3 <-> ThunderBolt-2 adapter and ThunderBolt-2 cable, and give that a try (you can return the Apple adapters and cables with 14 days if it does not work).


You could cable the display up with an HDMI cable [display data ONLY], and cable your USB devices separately, but that is far from the "one cable" solution you seem to be looking for.

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Question marked as Top-ranking reply

May 8, 2022 5:13 PM in response to Grant Bennet-Alder

I don't see a risk-free way to try to hook it up "One cable". You could obtain a genuine ThunderBolt-3 Dock, an Apple ThunderBolt-3 <-> ThunderBolt-2 adapter and ThunderBolt-2 cable, and give that a try (you can return the Apple adapters and cables with 14 days if it does not work).


You could cable the display up with an HDMI cable [display data ONLY], and cable your USB devices separately, but that is far from the "one cable" solution you seem to be looking for.

May 8, 2022 10:26 AM in response to parameter_poem

Please post the model-year of your MacBook Pro and the make&model of your display.


The first thing that comes to mind, is the Apple ThunderBolt-3 <-> ThunderBolt-2 adapter. IT will NOT work to connect DIRECT to your display, because it only connects genuine ThunderBolt devices on each side, and does not support any other display protocols directly.


Apple ThunderBolt-3 <-> ThunderBolt-2 adapter has an extremely slim possibility of use with a ThunderBolt-3 dock, connected with either a Thunderbolt cable in one case, or through the adapter in the other case.


When you use a display with a USB-C or ThunderBolt input, in most cases you are using DisplayPort encapsulated inside the other protocol. So you should think about DisplayPort rather than USB-C as the important display protocol.

May 8, 2022 5:07 PM in response to parameter_poem

computer:

Connectivity includes 3-stream AirPort Extreme (802.11a/b/g/n), Bluetooth 4.0, two USB 3.0 ports, two "Thunderbolt" ports, an HDMI port, an audio in/out port, and an SDXC card slot.

from Everymac.com


display:

USB-C x 1

DisplayPort 1.2 x 2 (Daisy Chain)

HDMI(v1.4) x 1

USB Hub : 4x USB 3.2 Gen 1 Type-A

Earphone Jack : Yes

USB-C Power Delivery : 65W

from maker's web site

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Connect new monitor with USB ports to Thunderbolt 2 port?

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