https://www.amazon.com/s?k=vesa+mount+laptop+tray&crid=1X40JGG99KFLE&sprefix=vesa+mount+laptop+tray%2Caps%2C103&ref=nb_sb_noss_1

I would go with this one if I was doing this with my portables. I use this one currently with my work laptop

https://www.amazon.com/HumanCentric-Laptop-Monitor-Notebook-Secures/dp/B07RJZJVHF/ref=sr_1_9?crid=1X40JGG99KFLE&keywords=vesa+mount+laptop+tray&qid=1684461719&sprefix=vesa+mount+laptop+tray%2Caps%2C103&sr=8-9

Mount your hub to your pole or VESA Shelf depending on ascetics.

VIVO Steel Behind Monitor and TV 6 inch VESA Shelf, Low Profile Platform for a Small CPU, Router, USB Adapter, and More, Fits VESA up to 100x100, Black, Mount-SFVA1

Some of the Dell Docks can be mounted.

https://www.dell.com/en-us/shop/dell-docking-station-mounting-kit/apd/575-bbiv/pc-accessories#polaris-pd

Amazon Basics Monitor Stand Cost: $26

Laptop Mount Tray Cost $18

Pretty affordable mount setup that does the job. Also sorry for late reply.

It is a gas spring monitor arm attached to a Laptop Mount.

You can buy both on Amazon here and here.

Simply combine one of these monitor arms with this one.

I think you don’t have to spend a lot for a monitor arm for this specific use case unless your laptop weighs more than 10kg…lol

PS. My english??… I just can speak well enough for hanging around with you guys on reddit. No sweat, haha!