Ergotron – LX Sit-Stand Single Monitor Arm, VESA Wall Mount – for Monitors Up to 42 Inches, 7 to 25 lbs – Polished Aluminum

The Ergotron LX Sit-Stand Wall Mount is great. Easy to assemble and install. Installation requires a drill, socket (preferred) or wrench, a way to find a stud behind the drywall, and a bubble level (you can download a free smart phone app for this). Once the tension is set it easy to move around and stays put. Very solid construction. Hopefully, it last a long time.Notes:- The cutout for the lower mounting bolt is smaller than the top cutout--make sure the pilot hole goes into the wall straight. If the bolt goes in with a downward tilt there won't be enough room to get the socket onto the bolt head.- Because of the design, it offers more maneuverability if the wall mount is in front of the user. I've got it mounted off center from my desk and it still works well.- When all the way back against the wall (both arms parallel to the wall and folded on top of each other) downward movement is limited since the lower arm blocks the upper arm's downward movement.- To help visualize how this moves I'll describe each joint:- Wall mount/lower arm: fixed height, rotates 180 degrees (wall blocks additional rotation).- Lower arm/upper arm: 360 degree rotation. Upper arm has a hinge that controls monitor height.- Upper arm/monitor: 3 axis hinge. 180 degrees rotation, monitor tilt (only about 5% downwards), monitor orientation.- Longer than normal power and video cables will be necessary.

This is absolutely a fantastic wall mount for mounting large monitors. I ordered one for my 34 inch Asus Ultrawide monitor as I have a glass desk which excludes me from many desk mounts. Plus the 34 inch monitors are quite heavy all these considered. I saw this mount in a YouTube video and the gentleman had an LG 34 inch widescreen monitor mounted and it moved around so well.I mounted this to the wooden stud in the wall and screw my monitor on and the results are excellent. So many different orientations. I cleared up so much desk space and it looks so professional. The materials are solid and the mount doesn't shake. It sits exactly where you place it.My buddy who also has two 34 inch monitors struggled with a desk mount having to put books under it to try and hold the weight ordered two of these for his monitors. Mounted both and they look great. This is an amazing product and I recommend it for anyone with a large monitor that wants to get it off the desk or has a glass desk that eliminates clamp down desk mount options.

Very Sturdy and Durable!

These things are huge! I had to order 2 of them for my 43" 4K LG monitors. Wanted to mount them to the wall and after trying some of the cheap under $100 arms, I wasn't satisfied. I was using 2 of the Ergotron dual-arm desk-mount arms for the past 10 years, but they wouldn't support my new monitors.These arms are big and heavy, but they work very well. Took about 2 hours to get both arms + monitors up and functioning. I took off a star for the plastic cable conduit cover. It is really thin plastic versus what they offered 10 years ago. I'm assuming they're saving a couple cents this way, really wish they didn't. I fear the tabs that hold it in place could break loose. Also, since I'm running multiple super-thick display cables through them, it has a tendency to pop out....really frustrating spending $500 on arms and this is happening.Overall, these arms were about the only option for me given the degree of articulation I wanted; still not perfect (I wanted more left/right articulation without depth movement), but those options ran into the thousands, so I settled again on Ergotron's.UPDATE: The plastic cable conduit still won't stay in place when it's fully loaded with cables. So instead I sleeved my cables and am attaching the sleeve to the arm with hook&look straps. I expect better from the premier line of monitor arms. Ergotron - thicken up this part please like your older products had.

The distance between bottom wall mount hole and top edge of Vesa mounting pad(without the optional extensions) is 56cm(or 22") when at the highest, 6cm(or 2.36") when at lowest.How to use the above data:* Measure the distance between your monitor's top to the Vesa mounting slot in back of monitor(yes, top of slot, not screw hole), let's say it is 18cm(or 7") for the monitor you want to mount.* Then measure your standing eye level(distance from ground to your eye when standing up right), let's say it is 160cm* Then you should drill the bottom hole on the wall mount at 160 - 18 - 56 = 86cm(or 33.86") above the groundThe above numbers are my calculation that works for me, take it with a grain of salt.

Unit does not accommodate extension sold separately without cautionary notation. Very expensive product which I would not have bought if I had been warned that they were not compatible. Neither vendor, Ergotron nor Amazon were accommodating. I thought I was doing the best in buying the better product. Would not buy anything from this vendor in the future.

This is the beefiest monitor mount I could find. I wanted to be sure I got one that would held its position well. This definitely lives up to my expectations. It has an excellent range of motion and is very easy to adjust. I like it so much that I bought a second one and will be looking forward to having dual wall mounted 27" monitors for my home office.

I got this for my wife so she could get her 27" monitor to the front of her desk as her vision went south after her stroke. This was s3everal times as expensive as the wall stand it replaced but well worth it. It is REALLY stout and the tension adjustment in the arm is terrific. The central screws in the mount did not line up with the stud beside the window trim so I took it to my home shop drill press and drilled the other holes that are off center and mounted it that way - no problem. You can get wall stand mounts a lot cheaper than this on BUT when you get and use this one you will see why the extra money is worth it.