Model# 24-189-055 a very handy cart that I used to switch between sitting and standing for computer work:
https://www.ergotron.com/en-us/products/product-details/24-189#/
It can hold 50lbs, and I used it for a bunch of 42" monitor without issues.
You can also mount power strips on the unit. I'll show you my setup when you arrive.
I can toss in a CPU (computer) holder mount 80-105-064 for free (but you need to give me heads up so I can grab it from storage):
https://www.ergodirect.com/product_info.php?products_id=16325
I have changed my bench setting that I don't need to use that many monitor carts anymore. This cart is already very expensive new. It can easily go above $1.3k if you include shipping and assembly. Now you have a fully assembled cart ready to go.
Hope it'll go to a good home. Delivery might be available for a nominal fee.