Ergotron

Ergotron Mounting Arm for Monitor, Mounting Collar, Mounting Pole, Display Screen, LCD Display, Monitor Mount - White (98-734-290)

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SKU:
21108047
MPN:
98-734-290
Availability:
Usually ships the same or next business day. In stock at our GA warehouse.
Shipping:
Calculated at Checkout
Stock Update:
08/24/2026 04:22:48 AM PST
$213.98
Stock Update:
08/24/2026 04:22:48 AM PST
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Description

This item is brand-new, factory sealed.

Ergotron LX Pro Monitor Arm Expansion Kit Add-on for LX Pro Desk and Wall Monitor Arms White
  • Compatible with LX Pro Arms: Upgrade your LX Pro desk monitor arm with 5-inch pole to a dual setup with this expansion kit and the Dual Side-by-Side Collar (98-745-290); use this kit to expand your 12-inch pole LX Pro desk arm to a Dual Stacking arm or use one or two Dual Side-by-Side Collar to create a triple or quadruple monitor solution
  • Easy installation: Includes LX Pro arm, extension, monitor pivot, pole collar, attachment hardware; attaches anywhere to the pole of the LX desk mount base to hold additional monitors or installs in the Dual Side-by-Side Collar (98-745-290)
  • Boosts productivity: Create a flexible yet stable two, three or four-monitor workstation to dramatically increase workflow efficiency; ideal solution for gaming, call centers, industrial spaces or finance where screen space is essential
  • Broad compatibility: Fits single screens up to 34 inches diagonal and 4 to 22 pounds; compatible with VESA patterns 75x75mm and 100x100mm; easily raise your monitor up to 18.3 inches above your worksurface with 13 inches of lift; find your best view for each project with up to 360 degrees of rotation and 85 degrees of tilt
  • Built to last: Extensive quality testing ensures your display stays stable and secure; Ergotron products set the standard for quality with a 10-year warranty and expert technical support?
  • Brand Name: ?Ergotron
  • Item Weight: ?4.85 pounds
  • Product Dimensions: ?21.06 x 7.28 x 6.5 inches
  • Country of Origin: ?China
  • Item model number: ?98-734-290
  • Color Name: ?White

Upgrade an LX Pro Monitor Arm to a stable multi-monitor solution for two, three or four monitors. This kit easily attaches directly to the pole of the desk mount base or the Dual Side-by-Side Collar to hold additional monitors or a laptop computer for gaming, call centers, industrial spaces or finance applications. For triple or quadruple monitor set-ups, use with the LX Pro Large Base.



Package Contents:
  • Arm
  • Extension
  • Monitor pivot
  • Pole collar
  • Attachment hardware
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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Ergotron Mounting Arm for Monitor, Mounting Collar, Mounting Pole, Display Screen, LCD Display, Monitor Mount - White (98-734-290)
$213.98