--- product_id: 468364733 title: "Ergotron – LX Monitor Arm Extension – Add-on for LX Desk and LX Wall Monitor Arms, LX Keyboard Arm – Matte Black" price: "$15.34" currency: USD in_stock: false reviews_count: 13 url: https://www.desertcart.us/products/468364733-ergotron-lx-monitor-arm-extension-add-on-for-lx-desk store_origin: US region: United States of America --- # 9-inch reach extension Extra pivot for max adjustability Compatible with LX Desk, Wall & Keyboard Arms Ergotron – LX Monitor Arm Extension – Add-on for LX Desk and LX Wall Monitor Arms, LX Keyboard Arm – Matte Black **Price:** $15.34 **Availability:** ❌ Out of Stock ## Summary > 📐 Elevate your monitor game—extend, pivot, and conquer your workspace! ## Quick Answers - **What is this?** Ergotron – LX Monitor Arm Extension – Add-on for LX Desk and LX Wall Monitor Arms, LX Keyboard Arm – Matte Black - **How much does it cost?** $15.34 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/468364733-ergotron-lx-monitor-arm-extension-add-on-for-lx-desk) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Compatibility:** Effortlessly integrates with LX Desk, Wall, and Keyboard Arms—upgrade without hassle or compromise. - • **Built to Endure & Support:** Backed by Ergotron’s 10-year warranty and rigorous quality testing for rock-solid stability and peace of mind. - • **Clutter-Free, Sleek Design:** Streamlined matte black finish with built-in cable management keeps your desk impeccably tidy and professional. - • **Extend Your Workspace Reach:** Add a precise 9-inch extension to your existing LX Arm for ultimate monitor positioning freedom. - • **Enhanced Ergonomic Flexibility:** Additional pivot point delivers a wider range of motion tailored to your unique workflow needs. ## Overview The Ergotron LX Monitor Arm Extension adds a precise 9-inch reach to your existing LX Desk, Wall, or Keyboard Arm, enhancing ergonomic flexibility with an extra pivot point. Designed for seamless installation and sleek cable management, this matte black extension supports a cleaner, more adaptable workspace. Built with Ergotron’s renowned durability and backed by a 10-year warranty, it’s the perfect upgrade for professionals seeking customizable monitor positioning without sacrificing stability. ## Description Add a second extension to your LX Desk Monitor Arm, Wall Monitor Arm or Keyboard Arm to increase its reach by 9 inches (23 cm). With another pivot-point, you get extra adjustment flexibility for a variety of uses. Review: Used to extend my monitor's reach (added to existing 2 LX extensions), sturdy - I wanted to be able to secure my monitor to the wall in my RV and have it extendable out to the dinette or bed. I can't do that, so I have a pole right next to the wall that it is attached to. I added this extension to my Ergotron LX dual monitor stand I already had, making 3 extensions plus the adjustable arm that the monitor attaches to. It works fine, though the weight is enough that even with a very sturdy pole I got as the base, it still flexes a bit and bounces with the monitor fully extended 38-40" from the pole. But that isn't the fault of the arms, it is the pole that flexes (which isn't surprising, given the weight of the monitor is 7 lbs at 3 feet out from the pole). I think you'd need a pole that was really short, or could also be clamped at the top. My pole is nearly 4 feet tall and very solid (thicker than the original short pole that comes with the LX dual stand), with dual clamps, near the bottom and then maybe halfway up. Review: amazing - absolutely perfect, easily connects to the monitor arm i bought and did not decrease the sturdiness at all! only added a bit of length but it made the difference i needed! ## Features - Compatible with LX Arms: Upgrade your LX Desk Arm (45-241-224), LX Wall Arm (45-243-224) or LX Keyboard Arm (45-246-026) with a second extension to increase its reach an additional 9 inches; adding extension may reduce weight capacity; not recommended for use with LX Dual Arms - Simple installation: Easily and quickly add one extension to an existing LX Arm; includes 9-inch extension and end cap - Extra flexibility: Another pivot point allows for a wide range of adjustment, expanding use for a broader variety of individuals and applications - Neat workspace: Streamlined design accentuates any work area and clean cable management routes cables under the arm and out of the way - 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09T782YJ2 | | Best Sellers Rank | #635 in Computer Monitor Arms | | Brand | Ergotron | | Color | Matte Black | | Customer Reviews | 4.6 4.6 out of 5 stars (938) | | Date First Available | February 23, 2022 | | Is Discontinued By Manufacturer | No | | Item Dimensions LxWxH | 17.1 x 17.7 x 29.9 inches | | Item Weight | 1.32 pounds | | Item model number | 45-289-224 | | Manufacturer | Ergotron Inc | | Product Dimensions | 17.1 x 17.7 x 29.9 inches | ## Images ![Ergotron – LX Monitor Arm Extension – Add-on for LX Desk and LX Wall Monitor Arms, LX Keyboard Arm – Matte Black - Image 1](https://m.media-amazon.com/images/I/51gEvKxEdHL.jpg) ![Ergotron – LX Monitor Arm Extension – Add-on for LX Desk and LX Wall Monitor Arms, LX Keyboard Arm – Matte Black - Image 2](https://m.media-amazon.com/images/I/71C8XtcbhaL.jpg) ![Ergotron – LX Monitor Arm Extension – Add-on for LX Desk and LX Wall Monitor Arms, LX Keyboard Arm – Matte Black - Image 3](https://m.media-amazon.com/images/I/51uW7ZEmVGL.jpg) ## Available Options This product comes in different **Color, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Used to extend my monitor's reach (added to existing 2 LX extensions), sturdy *by B***W on February 1, 2023* I wanted to be able to secure my monitor to the wall in my RV and have it extendable out to the dinette or bed. I can't do that, so I have a pole right next to the wall that it is attached to. I added this extension to my Ergotron LX dual monitor stand I already had, making 3 extensions plus the adjustable arm that the monitor attaches to. It works fine, though the weight is enough that even with a very sturdy pole I got as the base, it still flexes a bit and bounces with the monitor fully extended 38-40" from the pole. But that isn't the fault of the arms, it is the pole that flexes (which isn't surprising, given the weight of the monitor is 7 lbs at 3 feet out from the pole). I think you'd need a pole that was really short, or could also be clamped at the top. My pole is nearly 4 feet tall and very solid (thicker than the original short pole that comes with the LX dual stand), with dual clamps, near the bottom and then maybe halfway up. ### ⭐⭐⭐⭐⭐ amazing *by M***E on September 4, 2025* absolutely perfect, easily connects to the monitor arm i bought and did not decrease the sturdiness at all! only added a bit of length but it made the difference i needed! ### ⭐⭐⭐⭐⭐ Works with HUANUO Dual Monitor 'tree' arms *by N***R on May 17, 2023* Awesome for those like me who use a 22" high fps monitor with a 27" 4k monitor. Both of mine are mounted on the HUANUO Dual Monitor Stand and a fairly wide desk, so to get them positioned properly I needed at least one of these. Its super nice to be able to pull the gaming monitor super close when actually gaming while keeping the other monitor farther to the side and not have any visual overlap while sitting at the desk! The only possible downside is that the little cap doesn't snap on where the original HUANUO arm connects to this extension. it appears the Ergotron has a shorter cylinder... but who cares about that right? I'm making those 360 no-scope shots while watching whatever I have on the other screen between skirmishes :D --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/468364733-ergotron-lx-monitor-arm-extension-add-on-for-lx-desk](https://www.desertcart.us/products/468364733-ergotron-lx-monitor-arm-extension-add-on-for-lx-desk) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-17*