Ergotron LX Dual Stacking Arm Tall Pole (Matte Black)
- LX Dual Stacking Arm, Tall Pole - Includes two LX arms and extensions, 23" pole, heavy-duty two-piece desk clamp base with dual screws, two pole collars, two caps, grommet mount plate and hardware, monitor mounting hardware
- To facilitate stacking of monitors, maximum outside height of display should be no more than 21" (53 cm). To align monitors side by side, maximum outside width should be no more than 40" (102 cm). Most monitors with screen sizes of 40" or less fit within this specification
- Mounting Standards: VESA FDMI MIS-D, 100/75, C (hole pattern: 100 x 100 mm & 75 x 75 mm)
- Desk clamp attaches to surface edge up to 2.6" (66 mm) thick
- Grommet mount attaches through hole 0.31" to 2" (8-50 mm) wide and up to 3" (76 mm) thick
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Specs
Reviews
Learn more about the Ergotron 45-509-224
| Best Seller Ranking | #41 in Monitor Accessories |
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| Brand | Ergotron |
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| Model | 45-509-224 |
| Type | Mount |
| Color | Black |
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| Features | Positions monitors for maximum comfort with unparalleled range of motion. Helps reduce eye, back and neck strain with 13" (33 cm) of height adjustment. Allows you to easily position displays thanks to patented Constant Force technology. Frees up space in tight areas with the foldable arms. Multiple desk attachment options are available included with LX arms and as accessory kits. |
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| Weight | 19.00 lbs. |
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| First Listed on Newegg | May 04, 2022 |
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 3 years
- Limited Warranty period (labor): 3 years
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.ca's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-800-888-8458
- Support Email: customerservice@ergotron.com
- Support Website
- View other products from Ergotron
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The Ergotron LX Dual Stacking Arm Tall Pole is a two-monitor desk mount with a 23-inch pole and adjustable arms, suited to people who want to position compatible VESA displays in a stacked setup while freeing desk space.
Recommended For
- Desk-based workers who use two displays at once and want a vertical stack to keep more of the desktop clear for a keyboard, documents, or other equipment.
- People who regularly compare or reference material across two screens—such as office workers reviewing documents, spreadsheets, or data—and want to position each display independently.
- Users with two compatible monitors who want adjustable screen positioning and a tall pole for a stacked arrangement; check each display’s weight and dimensions before buying.
- Multi-monitor users who may later expand their setup: Ergotron documents adding LX arms to this tall-pole base for three- or four-display configurations, with lower per-display weight limits for those setups.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | A desk-based dual-monitor setup needing adjustable, articulating positioning |
| Mounting And Compatibility | Tabletop monitor mount with a 100 × 100 mm VESA pattern, compatible with monitors weighing up to 44 lb |
| Adjustability And Movement | Articulating arms with 13 in (33 cm) of height adjustment, up to 75° tilt, foldable arms, and Constant Force positioning |
| Size And Dimensions | 23 in pole; item dimensions are 17.7 × 7.1 × 30.3 in |
| Weight | 19 lb |
| Materials And Finish | Metal construction with a black finish |
| Model Identifiers | Ergotron model 45-509-224 |