Ergotron – LX Vertical Stacking Dual Monitor Arm, VESA Desk Mount – for 2 Monitors Up to 24 Inches, 7 to 20 lbs Each – White

Short version :_____________Pros:- easy to assemble- very robust and sturdy, will hold up very well within guidelines- fairly decent free range of motionCons:- dat price tag $$$$- certain features like cable routing and swivel leave some very minor grievancesLONG version :______________You don't have to read it all, but if you're already looking into buying this, there's a decent chance you are in a similar situation. If I was being nitpicky this would be a 4/5, but seeing as how there's really no other manufacturer that readily provides a solution to my problem it really is just the best I can get, from what I've seen.I upgraded from an LG 34UC89G-B 34" 21:9 to an Alienware AW3423DW 34" 21:9 and wanted to keep both monitors, with the new one on bottom and old on mounted on top. My old 2 arm mount was not going to be able to support this much weight as my other monitor was just a 27" 16:9 and it barely held those together. I didn't want to have to screw anything into my wall and I wasn't 100% sure on my desk space so I wanted free moving arms for orienting the monitors before finalizing where I want them to stay.Once I got this I was able to set my monitors up stacked on top of each other. While the bottom one isn't quite sitting as low as it can go, it's not far off. But the top monitor is just about using the mount's maximum capabilities in terms of being able to space these monitors apart while still leaving a tiny bit of room for adjustment. I have been able to pull my top monitor forward and rotate it portrait for documents and such though I have not done the same with the bottom monitor.______________________________________________________Overall actual use after setup:9/10The monitors themselves are not on the extreme end of heavy but they're not light. They both fall within the specifications of the mount. But where Ergotron excels with the LX is that it will actually support curved monitors up to that weight as well, as the curvature changes the center of balance of the overall monitor and puts more stress when extended out than your typical flat monitor. This is usually where you can see other people having issues with sag when approaching the upper limits of other mounting systems. These have not sagged at all since tightening down the screws and move with a fair bit of range, staying in place afterwards. However I do not extensively move my monitors around often and don't know how well it would hold up if you just kept moving them around constantly, though with the construction quality I'd wager it would be fine.One thing I was told from a friend who has the same mount: if your monitor is really bottom heavy for whatever reason and you decide to use it portrait style, the minor taps and thumps from your desk will cause it to try to rotate back to a horizontal position, skewed about 5-10 degrees. It's very minor and just takes a quick second to readjust but keep in mind that it may happen as 1 side is now far heavier than the other.______________________________________________________Setup process:9/10The setup itself was very easy. I saw other reviews having issues with it and maybe getting some help but if you follow the instructions provided, it is extremely easy, especially compared to setting up other mounts where you have to screw in the whole assembly to the monitor and take the entire piece and clamp it on your desk. You need to clamp down the base and bottom arm portions of the mount, then screw in the upper portions to the monitors BEFORE putting the rest of the mount together. The top arm portion falls right into the bottom and you just tighten the screw afterwards. If you can physically lift your monitor + 8 ounces or so, you will have no issues putting it together. One thing I will note: tightening the actual swivel head on the monitor so that the tension matches the weight of the monitor may be difficult if you are short since it adjusts from the top.WARNING: If your desk is particle board or something, I highly recommend buying reinforcement plates for the clamp. The clamp that the LX comes with is fairly sizeable but if you're going to be putting 50 lbs of pressure on 1 spot on your desk, it's best to not worry about the weight snapping your desk in half. If your desk isn't sturdy material: the arm mount will hold up, your desk will not. You're already splurging on this mount, don't cheap out and break your desk and potentially your monitors by skimping out on a $10 metal plate. If you don't want to go that route and don't care much about aesthetics, you can just use some wood.______________________________________________________Cable management:5/10Cable management looked like a mere afterthought. It's serviceable and hides the cables well enough but it's nothing to write home about. This feature has been better executed in cheaper models.______________________________________________________Range of motion:8/10Range of motion is better than most for sure. While it will still hold them in place, some positions and setups can be limited if you have enormous monitors. If you're using 2 24" monitors you will have zero issues, but the more you approach 40", even on 1 monitor, the options get more and more limited.______________________________________________________Final notes:I wish the pole was longer. That would solve a lot of issues people have had with mobility using large monitors. The arm mounts themselves hold up well, the fitting of large monitors just leaves something to be desired, especially out of something as expensive as this.

Bit the bullet and got this one because my previous arm kept sinking with my current monitors. The assembly was easy enough, and you can definitely tell the build quality was top notch. It came with multiple different adapters to fit different monitors. The tightness of the spring is easy to adjust as long as you keep their Allen wrench. You can easily adjust the angles or the tilts or rotations, but you can also choose to have 0 rotation which is actually neat for my use case.Overall am glad that I went with this set

I research most anything that is a specialty item and/or over $100, I believe in getting my money's worth but also hate getting sold on a cheap product. I searched all over the internet for a monitor stand that would offer some flexibility in what it could offer and this is the one I settled on. To each their own.My thoughts so far;The pros: strong arms rated for heavier monitors, a laptop option, adjustable height arms as well as the support base gives multiple ways to move the arms independently from each other and even swap side to side if I so choose (some stands the arms will conflict with one another), I liked the polished look contrast against the black, kinda classy. The base is solid with a "through" mount option, and the routing method for cables was about as good as any other stand. The laptop stand partially holds a computer by velcro which was very secure even with smaller pieces; also some rubber padding strips provided (both are 3M and good quality).The cons: the price is somewhat expensive, and the joints are incredibly stiff, at least to start.So, basically I have been very impressed with the item. It seems very well made, I like the look of it, and it is solid, the laptop stand is much more secure than I ever would have guessed and have been tearing my laptop off but better than there being a chance of it falling. Also, it is natural to grab the monitor, or in this case the laptop case, to use as leverage while adjusting the arms. I have a 29" monitor to go on one arm and it will likely be able to handle a bigger model in the future. But from the factory the joints are LOCKED tight. This shows the quality of the build, but frustrating at same time.The item came very well packaged, all the pieces set in their place in the box. The smaller individual pieces came in sealed, consecutively attached bags (for the most part, some stand alone items) overall very organized.This is a really nice item, and although it takes some getting used to maneuvering the "limbs", it really makes the desk seem more spacious once the clutter of moving is cleaned up. The joints are pretty tight at first and may get easier with more use, but as-is and considering the weight they need to handle it is not a real issue. Completely recommend this item.

I bought this back in 2013 and it worked great with a 27" monitor on one arm and the laptop tray and my Macbook Pro on the other arm - inserted into a hole on my treadmill desk. I upgraded my monitor to a Dell curved 32" monitor, which is under 17lbs. The arm couldn't hold the monitor at first, so I went back to the directions and learned there is a screw to create more tension on the spring. After making the adjustment on the arm the my new monitor held in place just fine. The new monitor was on a different desk; instead of going through a hole in the desk top, I had to clamp onto the edge. The only caveat is that if you are up against a wall, you may not be able to maneuver the monitor back far enough without hitting the wall with the arm. To remedy this, I put the pole on the left side and had the arm fairly straight so that I could push the monitor back without the arm elbow getting in the way or hitting the wall.