https://www.amazon.com/Ergotron-Monitor-Monitors-Up-Polished...
2. This is $400 more than the other arm. You're paying $400 for the added height adjustment.
https://www.amazon.com/s?k=VESA+monitor+arm
YMMV but shop around for corp clearance.
https://www.amazon.com/Ergotron-Monitor-Monitors-Up-Polished...