Ergotron 45-509-216 LX Dual Stacking Arm, Tall Pole (White)
Find your best view, save desk space and discover your most productive self with the LX Dual Stacking Arm, Tall Pole. This multi-monitor mount lets you position large screens separately for a new level of flexible working. It offers a stable fit for monitors weighing 7–22 lbs (3.2–10 kg) each in a dual configuration, 7–14.6 lbs (3.2–6.6 kg) in a triple configuration, or 7–11 lbs (3.2–5 kg) in a quadruple configuration. Support stacked monitors up to 21" (53 cm) high and side-by-side monitors up to 40" (102 cm) wide. To add a third or fourth display, order the LX Arm, Extension and Collar Kit. To support a laptop, order the Notebook Tray.
Find your best view, save desk space and discover your most productive self with the LX Dual Stacking Arm, Tall Pole. This multi-monitor mount lets you position large screens separately for a new level of flexible working. It offers a stable fit for monitors weighing 7–22 lbs (3.2–10 kg) each in a dual configuration, 7–14.6 lbs (3.2–6.6 kg) in a triple configuration, or 7–11 lbs (3.2–5 kg) in a quadruple configuration. Support stacked monitors up to 21" (53 cm) high and side-by-side monitors up to 40" (102 cm) wide. To add a third or fourth display, order the LX Arm, Extension and Collar Kit. To support a laptop, order the Notebook Tray.
Find your best view, save desk space and discover your most productive self with the LX Dual Stacking Arm, Tall Pole. This multi-monitor mount lets you position large screens separately for a new level of flexible working. It offers a stable fit for monitors weighing 7–22 lbs (3.2–10 kg) each in a dual configuration, 7–14.6 lbs (3.2–6.6 kg) in a triple configuration, or 7–11 lbs (3.2–5 kg) in a quadruple configuration. Support stacked monitors up to 21" (53 cm) high and side-by-side monitors up to 40" (102 cm) wide. To add a third or fourth display, order the LX Arm, Extension and Collar Kit. To support a laptop, order the Notebook Tray.
Find your best view, save desk space and discover your most productive self with the LX Dual Stacking Arm, Tall Pole. This multi-monitor mount lets you position large screens separately for a new level of flexible working. It offers a stable fit for monitors weighing 7–22 lbs (3.2–10 kg) each in a dual configuration, 7–14.6 lbs (3.2–6.6 kg) in a triple configuration, or 7–11 lbs (3.2–5 kg) in a quadruple configuration. Support stacked monitors up to 21" (53 cm) high and side-by-side monitors up to 40" (102 cm) wide. To add a third or fourth display, order the LX Arm, Extension and Collar Kit. To support a laptop, order the Notebook Tray.
in 11 offers
The lowest price for Ergotron 45-509-216 LX Dual Stacking Arm, Tall Pole (White) right now is $429.00 at Lenovo, compared across 11 retailers.
The all-time low was $29.70 on 22 Jan 2025 — today's price is 1344% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 18 Sept 2026.
Last updated at 18/09/2026 11:26:33
Ergotron – LX Vertical Stacking Dual Monitor Arm, VESA Desk Mount – for 2 Monitors Up to 40 Inches, 3.2 to 10 kg Each – Tall Pole, White
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Ergotron LX - Mounting kit - for 2 LCD displays - aluminium - white - screen size: up to 40" | 78019673
Free delivery
Ergotron LX Dual Stacking Arm - Tall Pole (White)
Free delivery between 22–29 Sept
Ergotron 45-509-216 LX DUAL STACKING ARM TALL POLE BWT.
Delivery $29
ERGOTRON Lx Dual Stacking Arm Tall Pole BWT.
Delivery between 23–25 Sept $16
Ergotron 45-509-216 LX DUAL STACKING ARM TALL POLE
7-day returns
Ergotron 45-509-216 LX Dual Stacking Arm Tall Pole & Two-Monitor Mount - Up to 40" Monitor - White
Delivery between 23 Sept – 2 Oct $12
Ergotron LX Dual Stacking Arm Tall Pole White 45-509-216
Delivery $15
45-509-216 Lx Dual Stacking Arm, Tall Pole (White) 45-509-216
Delivery $27
Ergotron LX Dual Stacking Arm Tall Pole Monitor Mount, White
Delivery $29
originally posted on ergotron.com
Have an older 30" Dell from 2008 that is considerably heavier than my newer 34" UW monitor. Wanted and over under with the wider monitor on the bottom but was uncertain if this was capable of supporting the weight. So far (approx 3 mos) it has handlesd both with no droop orn either. sag op
originally posted on ergotron.com
Works great, stable. I’m using in my RV/Camper attached to dinette table and it’s working well. Right now I have the laptop attachment and that works convenient so I can look up vs down at the laptop. Moving towards a external monitor, have not tested with that yet. The movement is smooth so I can slide the laptop around and also choose between sitting and standing (I have the tall pole). I use an external keyboard/trackball. Working on mounting off the table that will free up some room. Given this is the only table/desk it’s been good to free up space on the table for eating, etc.. with the laptop hovering above. I would purchase again.
originally posted on digitec.ch
This Ergotron LX Dual is fantastic. It is expensive but it's very good quality. It will last a very long time. You can adjust the height depth and tilt upwards. The arms extend pretty far which works for most desk spaces. I really like having the monitors above each other.
| General | |
| Height | 55.9 cm |
| Material | Aluminium |
| Colour | White |
| AV Furniture |
Ergotron – LX Vertical Stacking Dual Monitor Arm, VESA Desk Mount – for 2 Monitors Up to 40 Inches, 3.2 to 10 kg Each – Tall Pole, White
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Ergotron LX - Mounting kit - for 2 LCD displays - aluminium - white - screen size: up to 40" | 78019673
Free delivery
Ergotron LX Dual Stacking Arm - Tall Pole (White)
Free delivery between 22–29 Sept
Ergotron 45-509-216 LX DUAL STACKING ARM TALL POLE BWT.
Delivery $29
ERGOTRON Lx Dual Stacking Arm Tall Pole BWT.
Delivery between 23–25 Sept $16
Have an older 30" Dell from 2008 that is considerably heavier than my newer 34" UW monitor. Wanted and over under with the wider monitor on the bottom but was uncertain if this was capable of supporting the weight. So far (approx 3 mos) it has handlesd both with no droop orn either. sag op
Works great, stable. I’m using in my RV/Camper attached to dinette table and it’s working well. Right now I have the laptop attachment and that works convenient so I can look up vs down at the laptop. Moving towards a external monitor, have not tested with that yet. The movement is smooth so I can slide the laptop around and also choose between sitting and standing (I have the tall pole). I use an external keyboard/trackball. Working on mounting off the table that will free up some room. Given this is the only table/desk it’s been good to free up space on the table for eating, etc.. with the laptop hovering above. I would purchase again.
This Ergotron LX Dual is fantastic. It is expensive but it's very good quality. It will last a very long time. You can adjust the height depth and tilt upwards. The arms extend pretty far which works for most desk spaces. I really like having the monitors above each other.
This Ergotron monitor stand is built really well and looks great. However, one major drawback is the lack of a left/right sliding motion ability on the monitors. This becomes apparent when you have limited space across a desk that is against a wall. I was not able to position the arms back against the wall because they need to stick out beyond the desk (through the wall). As is, you have to configure the monitors based on intersecting circles, since the arms/joins all turn. Nothing allows a sliding left/right motion. I ended up returning this for an ESI Ergo EVOLVE2.
Great. Easy to set up. Very durable. Only wish there was a way to run cable through the base- I’ve zip tied them to the back but it’s an imperfect solution
Love the black matte look and feel. Bit disappointed about the tension adjustments. Some of them are located in inconvenient positions. Couldn’t find a way to adjust the tension of the rotation of the head, only the pivot. Installation instructions are terrible. Overall the product does its job well and only issues were about installation and adjustments which you only really need to do once.
My workstation now has my iMac Pro, a Macbook Pro and three additional 27" 5K monitors. All was built using the LX series of products. I'm super happy!
Overall its a great stand. Feels sturdy and the parts used feel high quality parts are used. But when spending this much I was surprised to see they provide zip ties to manage cables. Not something you would expect at $400. Additionally there is no ability to tilt the monitor down. When positioning a monitor high, ergonomically it would be nice to allow for a downward tilt position on the monitor.
It holds the display unit very well. Easy to move around and adjust positions. I have setup 24 iMac along with a 27 monitor, plenty room for both monitor to move around. Highly recommended.
Great set up. I am using 2 x38/40inch monitors. Easy to set up. Very neat and high quality product. Could be expanded buying two extra arms to have 4 monitors. (I do not currently need this). 40inch Monitors can be set up side by side or one over the other vertically. highly recommend to avoid desk clutter and look very professional.
| General | |
| Height | 55.9 cm |
| Material | Aluminium |
| Colour | White |
| AV Furniture |
