Ergotron – HX Single Ultrawide Monitor Arm, VESA Desk Mount – for Monitors Up to 49 Inches, 20 to 42 lbs – White

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  • Heavy-duty monitor arm lets you easily reposition large screens for better comfort, enhanced productivity and more desktop space
  • Offers 23.6 inches (60 centimeters) of extension and 11.5 inches (29 centimeters) of lift; up to 360-degree rotation and 75-degree tilt
  • Holds 20 to 42 pounds (9 to 19 kilograms), making it perfect for screens up to 42 inches or larger (screen depth over 6 inches/15 centimeters may limit compatibility)
  • Avoid hitting adjacent walls with the rotation stop; cable management controls cord chaos
  • Sturdy, professional-grade design includes a 10-year warranty


Moving You Forward We are a movement company. It’s who we’ve been since Harry Sweere founded Ergotron in 1982 and earned patents on some of the first ergonomic desk stands. His legacy of innovation guides how we help our customers address the challenges of today and carries on in our core values. Customer Obsessed Our human-centered product design and development centers on solving problems for our customers to help them thrive. Professional-Grade Quality Our professional-grade products are engineered for durability and tested to performance excellence. Ergonomics & Wellness We provide tools and resources to help you find your best fit and make your move to a stronger, healthier you. Read more HX Arm Features Built to Last 10,000-cycle tested design—the equivalent of moving the arm through its full motion range three times a day for ten years. Flexible Positioning Add flexibility and superior ergonomics with 25 inches (60 centimeters) of extension and 11.5 inches (29 centimeters) of lift. Saves Space Streamlined look enhances your work area, freeing up desk space for your phone and notes with neat cable management. Read more Attachment Options Two attachment methods included: Desk clamp attaches to the desk’s edge 0.6–2.6 inches (1.6–6.6 centimeters) thickGrommet mount attaches to desks less than 2.8-inches (7.2-centimeters) thick via a 0.4–2-inches (1–5.1-centimeters) wide hole in the desk's surface Effortless Adjustment An advanced mechanical design is paired with a universal VESA interface, enabling attachment to heavy ultrawide and curved displaysNo matter which way you lift, tilt, pan, or turn, the effort remains small with a uniform force applied throughout the range of motion Multiple Colors Complement your existing décor with three versatile color options: Polished Aluminum Matte BlackBrilliant White Setup Is Simple Straightforward assembly with neat and clean cable management routingIn the box: arm, extension, desk clamp and grommet mount bases, hardware Attachment Options Effortless Adjustment Multiple Colors Setup Is Simple Add Multiple Screens Convert your arm to hold two or three displays with the Dual Monitor & Handle Kit (97-783) or Triple Monitor Bow Kit (98-009). Immerse Yourself Add the accessory HX Heavy-Duty Tilt Pivot (98-540-216) to support 1000R gaming displays with a depth of 6–12 inches (15–30 centimeters). Sleek Build Cables stay hidden under the arm and through the extension. Avoid hitting adjacent walls with the rotation stop. Read more HX Desk Ultrawide Monitor Arm HX Desk Ultrawide Monitor Arm with HD Pivot LX Desk Mount Monitor Arm LX HD Sit-Stand Desk Arm HX Desk Dual Monitor Arm MX Monitor Arm About Premium arm for large, ultrawide displays Heavy-duty pivot accommodates extra-deep displays Versatile arm for standard-size displays Sit-stand lift for heavier displays Premium 2-monitor arm with hinged bow Compact arm for heavier displays Screen Size ≤ 49" ≤ 49" ≤ 34" ≤ 46" ≤ 32" ≤ 30" Screen Depth ≤ 6" 6"–12" ≤ 3.6" ≤ 4.3" ≤ 3" ≤ 4.3" Weight Capacity 20–42 lbs 28–42 lbs 7–25 lbs 14–30 lbs 10–35 lbs 14–30 lbs Lift Range 11.5" 11.5" 13" 20" 11.5" 5" Extension Range 23.6" 23.6" 25.6" 33" 24.5" 21.6" VESA 75x75, 100x100, 200x100, 200x200 75x75, 100x100 75x75, 100x100 75x75, 100x100, 200x100, 200x200 75x75, 100x100 75x75, 100x100, 200x100, 200x200

Manufacturer: ‎Ergotron

Brand: ‎Ergotron

Item Weight: ‎15.18 pounds

Product Dimensions: ‎11.81 x 19.29 x 7.2 inches

Item model number: ‎45-475-216

Is Discontinued By Manufacturer: ‎No

Color: ‎White

Number of Items: ‎1

Size: ‎1

Manufacturer Part Number: ‎45-475-216

Date First Available: December 15, 2016

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jan 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews

4.0 out of 5 stars | Strong!
Color: White
My monitor is 49 inch's big and 25 lb weight(w/o stand). Its stand is also huge and it occupied almost 2/3 of my desk. I was looking for a proper monitor arm because a typical monitor arm cannot support its weight. Finally I found this one and it works perfect. Easy to assemble!
Reviewed in the United States on July 15, 2019 by King's Guard

5.0 out of 5 stars | Great Monitor Arm for Ultra Wides
Color: White
I have seen a few negative reviews on here, so I,m not sure if there was a bad batch or maybe something the users haven't done correctly. I have had my monitor arm since November and have not had any issues. I picked this up due to ordering the Samsung CRG49 when it came out which resulted in me building a new desk to hold the behemoth. Even with a larger desk the base of the CRG49 protruded out into my working area. So I looked up online and came across this monitor arm. out of the box I did have to crank up the tension on the arm to not drop the monitor onto my desk. And I did have to give a couple dozen turns to get the tension right on the upper arm tension screw. I also tighten the vesa head tension screw a little for good measure. I would rather it take to hands to move then one. Getting it out of the box you tell its a quality arm...its super heavy. Cons: Wish It came in a semi or flat black. While its my fault I wish they bolded or gave a heads up to get your attention about the locking screw in the VESA head part which locks your monitor from being able to be turned. once you have it put all together there is no other way to get that locking screw in without having to take the monitor off the arm. Either way It was there in the instructions I just missed it and its a very small mention. I will live its doesn't drift. but when you extend or put the arm back you tend to pivot the monitor a little side to side. Side notes: Makes sure your cables are long enough to reach your PC and Power when routing along the arms cable management. I need to order some new cables that a re a bit longer since I like to use my monitor and arm with my racing SIM which extends the arm out all the way.
Reviewed in the United States on January 27, 2020 by Hysinthius

3.0 out of 5 stars | Not for great for a G9
Color: Polished Aluminum
Though this has the specs to hold a samsung Oddessy G9, the swivel joint at the top will not. Your monitor will always be at a downward angle. Luckily it comes with an allan key you can wedge in it to keep it level. If anyone finds this and wants pictures how to get a g9 level on this i can add a picture.
Reviewed in the United States on September 27, 2020 by Grant A. Rogers

5.0 out of 5 stars | SPECTACULAR. YES YES YES. YES.
Color: Polished Aluminum
I absolutely absolutely FREAKING LOVE THIS ARM. I bought it as soon as I found out we'd be working from home for a while, in an effort to finally upgrade my home setup. After I bought it I mentioned it to a friend, and she said "YES!!! I HAVE THE SAME ONE AND I LOVE IT!!" I've only had it for a couple of months, but my friend has had hers for years and it's still going strong. I have an enormous Cintiq - 24HD Touch. I was warned that if the weight of the screen to be supported is too close to the weight limit, it probably won't work well, and this was literally the only arm I could find that was rated to support my monster! Not only does it hold the weight of my Cintiq beautifully, the motion is smooth and effortless, only a very slight wobble, and I can lean on it pretty hard without it going down. It's a little tricky sometimes to get the wrench-key into the right spot for adjusting the tension, and every person will prefer something a little different - but once you get the hang of it it's a no brainer. Installation itself was easy and instructions were clear. The only difficulty was lifting my Cintiq onto the arm once it's all assembled, because the dumb thing is so darn heavy it would have been nice to have a second pair of hands... but that's not the arm's fault! Ergotron is the standard in the entertainment/arts industry for a reason. I'm an artist, so aesthetics matter, and it has to function all day long every day. I COULD NOT be more pleased. I'm an extremely tactile and picky person I got the polished aluminum one and I have to say, it's actually beautiful. It doesn't have that "ergonomic tech" look that a lot of other "ergo" products have, which I think is pretty tacky and wanna-be futuristic. This thing though... this is a beautiful and sturdy piece of engineering and it performs it's function to perfection. THANK YOU ERGOTRON. My desk is 30" deep and it reaches well beyond the edge from the back, but I have it mounted to one side and it works just fine there too. This is such a massive improvement over the piece of crap stand that the last few models of Cintiqs have come with (the one that only has two positions to choose from, is difficult to adjust, and weighs a freaking ton), it's just night and day. It's rare that I am so dang chuffed over a purchase that I feel COMPELLED to review it, but this one dear god was completely worth it. Improved my workspace 1000% times over and I'm pleased every time I see it and grateful every time I use it! What a spectacular piece of equipment!!!!
Reviewed in the United States on April 19, 2020 by Letmeowt2006

4.0 out of 5 stars | Perfect 40"+ monitor stand.
Color: Polished Aluminum
I was in the market for a heavier duty monitor arm as my trusty D7L was just not cutting it on my 49" X800E. Having made the decision recently to switch to the LG CX 48 OLED, I decided it was time to finally get a monitor arm that won't droop/sag under the weight of a larger display. After doing some light research, it turns out the Ergotron HX is really one of the only solutions, if you're looking for a load capacity of more than 40lbs... And so I picked it up. Construction is solid, as you would expect from Ergotron. Assembly is straight forward, instructions are simple and easy to follow. Note, you may want to adjust the spring tension on the arm section with the VESA plate as it is a bit of a pain to adjust afterwards as I learned. For the CX 48, I had to also purchase a VESA adapter as the included brackets only support up to 200x200 mounting. Overall very impressed by the arm. It's very smooth and fluid to move around, and it has shown no signs of drooping (after adjusting the spring tension). The only negative, and it's a big one, is the price. If you don't need this much load capacity, the next best option (and one I would recommend) is the Locktek D7L (up to 33lbs) at over $100 less...
Reviewed in the United States on August 31, 2020 by Long Zhang

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