One of only two mounts here that publish both reach and rise
A full-motion dual mount that publishes both its reach and its rise — with the Acer, the only one here that does — tested to 20,000 cycles, at about $50.
MOUNTUP full-motion dual arm with 19.5 in reach
Best for: Two screens up to 32 in on a deep desk, where published reach and rise matter more than a thick-desk clamp.
This listing publishes the two figures that decide whether a mount suits your particular desk: 19.5 in of reach and 16.9 in of rise. Reach is what lets a 27 in screen sit back against the wall and come forward on demand; rise is what gets the top of the panel to eye level. Only the Acer publishes both on this shelf, and six of the ten mounts publish neither.
The rest is a conventional full-motion arm set out carefully. Tilt 90° up and 45° down, swivel 180°, rotate 360°, every joint adjustable, cables routed inside the arms, and both fixings specified — a C-clamp or a grommet for tops from 0.39 to 2.76 in, the grommet needing a bolt hole between 0.39 and 2.36 in. A 20,000-cycle test is claimed, as it is on the Acer arm. What is not stated is the lift mechanism: the listing never says gas spring or mechanical spring.
Each arm takes screens up to 32 in, flat or curved, at 4.4 to 19.8 lb on VESA 75 or 100; MOUNTUP names 22 to 32 in sizes as examples without setting a minimum, so the weight floor is the limit to check for a small secondary panel. At about $50 it costs less than the Acer, which reaches further and rises higher for about $70.
Read on the day this page was built: $50 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Best for: Two screens up to 32 in on a deep desk, where published reach and rise matter more than a thick-desk clamp.
Prices quoted in this text were read on 2026-10-13. The live price is at the top of the page.
The listing does not set a minimum size. It names 22, 24, 27 and 32 in screens as examples and says it fits "up to 32 inch"; the real lower limit is the 4.4 lb weight floor, below which a light panel may not stay where it is put. Check the weight of a small secondary screen rather than its diagonal.
The ability to push both screens back over the edge of the desk and pull them forward when you need them. On a deep desk that is the difference between a usable keyboard area and a monitor in your face. It is the longest reach on this shelf after the Acer arm at 21.25 in — and eight of the ten mounts here publish no reach at all.
MOUNTUP gives 0.39 to 2.76 in of desk thickness for both the C-clamp and the grommet, and a bolt hole of 0.39 to 2.36 in for the grommet. A thicker top — butcher block over 2.76 in — needs the Amazon Basics, which clamps up to 4.25 in.
A mechanical-spring articulating mount with open-top VESA plates for slide-on fitting — and the only listing on this shelf to warn that the arms project beyond the back of the desk.
Best for: A desk standing clear of the wall, where a mechanical spring is preferred to a gas cylinder.
A steel desk-clamp mount for two 13 to 32 in screens at up to 8 kg (17.6 lb) each, with a 5-year guarantee — about €21 in Germany but about $58 on Amazon.com.
Best for: Two light-to-medium screens on a standard desk, for a buyer who values a long guarantee — ideally bought at the European price.
22 lb per arm — level with the Digitus, the highest on this shelf — at the lowest price here, on a listing that spends most of its bullets on what can go wrong.
Best for: Two heavy screens on a thick desk, for someone willing to set the tension properly before trusting it.
A clamp-on holder that flips over to work either as an under-desk hanger or an above-desk stand, adjustable between 6.5 and 10.2 in, taking desks up to 1.97 in — and the one listing in this hub that publishes a weight limit.
Best for: Anyone who does not yet know whether they want the headset above the desk or under it.
The one holder in this hub that clamps to the side of a monitor instead of a desk, with a silicone-coated cradle and a stated panel range of 0.2 to 0.7 in.
Best for: A desk with no spare edge and no spare surface, where the monitor is the only thing left to hang from.
A freestanding aluminum and TPU stand that publishes both its height and its base width — 8.85 in on 3.7 in square — and asks, in its own listing, for a desk that is flat and dust free.
Best for: A desk where a stand has to be moved around rather than fixed to one edge, and where the surface is flat.