LX Dual Stacking Arm with Laptop Mount Option


LX Dual Stacking Arm with Laptop Mount Option

  • Holds two monitors up to 24" in size, or a monitor and laptop

  • Designed for ultra-flexible screen placement

  • Luxury arm lets you place screens one over the other or on either side

  • Two arms independently lift, extend and rotate for the best view

  • Built for thousands of movements by passing 10,000-cycle quality test

Availability: In stock


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The LX Dual Stacking Arm saves desk space and positions screens for the most comfort and productivity. This dual mount uses patented Constant Force™ technology for easy adjustment. Up, down, forward or backward, an LX monitor arm adapts for your best view. Independent movement for each arm creates a new level of monitor placement flexibility. Made of durable aluminum and steel and put through rigorous quality tests, it’s backed by an industry-leading 10-year warranty.


≤24" †
≤40 lbs
≤18.1 kg *
33.0 cm
10 years
  • Part Number: 45-248-026
  • Color: polished aluminum with black accents
  • Includes two LCD arms, two extensions, 13" pole, desk clamp and grommet mount, laptop tray, laptop fastening kit, attachment hardware
  • Quality Tested: 10,000-cycle test applied to lift mechanism, ensuring years of trouble-free height adjustment
  • Aluminum construction offers greater durability and enhanced aesthetics
  • Snap-fit cap secures interface of arms to extensions for greater stability
  • † To facilitate stacking of monitors, maximum outside height of display can be no more than 14" (35 cm). Most monitors with screens of 24" or less fit within this specification. Larger screen sizes are allowable when positioning displays side by side
  • * Weight Capacity: individual LCD weight = 7 to 20 lbs (3.2 to 9.1 kg); laptop weight range = 2.5 to 12 lbs (1.1 to 5.4 kg); maximum combined weight of displays = 40 lbs (18.1 kg)
  • Mounting Standards: VESA FDMI MIS-D, 100/75, C (hole pattern: 100 x 100 mm & 75 x 75 mm)
  • Desk clamp attaches to edge up to 2.6" (66 mm) thick; grommet mount attaches through hole 5/16" to 2" (7 to 51 mm) wide and up to 3" (80 mm) thick
  • Shipping Dimensions: 19.25" x 15.25" x 9" (49 x 39 x 23 cm)
  • Shipping Weight: 18.5 lbs (8.4 kg)
  • Warranty: Ten (10) years


Customer Reviews Write Your Own

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Quality, Excellent, Worth its Price

Review by Fernando

Although I was initially skeptical about purchasing a $300+ monitor mount, which is around the same price as both of my monitors, I can safely say that I have no complaints with the product. The instructions to set the mount up can be slightly confusing, but once you figure it out, the monitor mount is seamless. As other reviews have mentioned, initially moving the arms was incredibly difficult, but once your monitor is attached, they become much easier to use and move around. I would recommend this product to anyone looking for the best dual monitor mount that is worth its price and more.

(Posted on 9/21/2020)

Strong, flexible and incredibly useful

Review by MarkAndrew

I looked for a strong and flexible arm for 2 of my monitors and Ergotron was one of the only companies that had exactly what I was looking for. I cannot say enough about how the LX Dual Stacking Arm has met all my needs.

(Posted on 7/21/2020)

Great for working at home

Review by RT

Easy to install, easy to reposition. Using as monitor + laptop setup for working at home (27" Dell P2720D + ThinkPad T480s).

This kit includes the laptop mount and tray, so there is no need to purchase anything else.

The arm joints can be stiff to move before anything is mounted. However, once things are mounted, the additional weight makes them much easier to move.

(Posted on 6/18/2020)

Great Function and Quality

Review by Active Guy

Product LX DUAL STACKING ARM works terrific, solid and functional, good quality and is providing a healthier work space . Thank you Ergotron.

(Posted on 6/11/2020)

Dual Monitor/Dual Stacking Great Function and quality

Review by Active Guy

This product is functional and is providing a quality solution to greatly improve my work space resulting in a healthier interface. Thank you Ergotron. I am now purchasing another LX Arm.

(Posted on 6/11/2020)

Superior design, Sturdy, Easy setup

Review by TampaMikeD

This is the second Ergotron dual monitor stand we've purchased and we are very pleased with both (we added this one because we needed our monitors to sit higher). The setup is very simple and straight forward. Once installed the monitor positions are easy to reposition, yet they remain in place once moved to a new position. This feature is what truly makes this stand impressive. You don't need to make adjustments with a tool to reposition a monitor, you simply move it with your hands and it stays... simple. This is a solid piece of equipment that I would highly recommend to anyone looking for an adjustable dual monitor stand.

(Posted on 6/1/2020)

Dual Monitor/Dual Stacking

Review by Russell U

Ergotron products are top of the line. Their mechanical designs are robust, stable and very well balanced. Ergotron produces the only product that I have consistently found to work as well in practice as they look in print. I use both the LX dual stacking arm and the HX Dual monitor arm in my business and will purchase these for customer systems without hesitation. Bravo Ergotron for setting an example for others to follow!

(Posted on 5/22/2020)

Sturdy, Versatile, Easy to Install

Review by Jesse

I used this arm to mount two 24in monitors and the system handles them exceptionally well. This is definitely a heavy duty system. You can either mount the base through the desk or use the clamp that is included. It also has a laptop tray option to mount a monitor and a laptop instead or two monitors. The arms are a little stiff to move at first, so it's important to adjust the screws properly with the allen wrench that is included. It does take a little trial and error, but the arms move freely after all the adjustments are made. I like the fact that is the unit is sturdy and not flimsy at all.

(Posted on 1/14/2020)

Support Materials

Product Sheetpdf772.94 KBEnglish
Dimensional Illustrationspdf1013.84 KB
Installation Manualpdf5.51 MB