Monitor fit
ClearSpace lists flat monitors from 4.4 to 24.2 pounds and curved monitors from 3.3 to 18.2 pounds, but the same page also says 22 pounds per arm. Check your monitor against the lower figure.
ClearSpace Design UNI-2
Two arms on one pole with sliding monitor plates, hidden cables and USB ports in the base. ClearSpace lists a 10-year warranty.
We may earn a commission.Compatibility report
ClearSpace Design UNI-2 dual monitor arm with top-down clamp or grommet mount and Smart Base, in white, black or silver
ClearSpace Design UNI-2 dual monitor arm with top-down clamp or grommet mount and Smart Base, in white, black or silver
What works. What doesn't.
Desk fit
ClearSpace says it installs from above the desk by clamp or grommet. We did not find a desk thickness range in text on the product page.
Adjustment
PCWorld found it easier to adjust than the Humanscale M8.1. Each monitor rides on a slider that moves left or right.
Build and support
PCWorld names it the best premium dual-monitor arm and notes a base hub with one USB-A and one USB-C port. It did not recommend the optional SmartDock.
Read the bigger picture.
Monitor mountsBuying guide
Dual monitor stands: match each arm's weight range and your desk thickness
Four dual monitor arms with each maker's VESA pattern, per-arm weight range, screen size limit and desk clamp range side by side.