AVLT Single 17"-49" Super Ultrawide Monitor Arm for Screens Up to 50 lbs, Premium Aluminum Desk Stand, Adjustable Pneumatic Height, Full Motion Swivel Tilt Rotation, USB 3.0 & AUX Ports, Black

My AVLT DM40-1 monitor arm has worked brilliantly with my 20 lb. 34" super-wide monitor for two years. Love everything about it.But it's less than perfect with my new 43" Dell monitor, which weighs 40 lbs. The arm holds up the monitor just fine, but the two main "joints " are very hard to rotate horizontally. The weight of the monitor seems to cause the joints to bind. Maybe some kind of lubricant would help? The joints appear to already have some kind of black lubricant -- maybe graphite or some kind of grease -- but I can't find any documentation on it. I'm thinking of trying a silicone spray-on lube.The arm is supposed to support a monitor up to 50 lbs. It succeeds at holding this 40 lb. monitor up in the air. Vertical adjustments are easy, but swinging it around horizontally is not easy, especially if you want to move the upper arm the opposite way of the lower arm.AVLT, if you see this, please get in touch on the lubricant question.

Monitor: Samsung CRG9 (the 49" Super Ultrawide behemoth that weighs nearly 30 pounds)For those worried that their monitor will drop down and become one with their desk: it won't, IF you set it up correctly.Out of the box, there will be some significant assembly especially for a monitor arm, do not worry about this, all the tools required will be provided. One of the Allen wrenches has a flat head at the end, just in case you need one for the VESA mount screws, but it will also be important for the flathead screws on the joint pieces that hold the mount together. (There are two joints. One is between the base and the "bicep", the other is between the bicep and the "forearm". These are the joints that you must tighten the flathead screw to ensure that these parts stay together.)The base is the densest part of the mount, it is very heavy, boasting two poles on the clamp that are adjusted with the Allen wrench to ensure a steady hold on the edge of your desk. This thing isn't going anywhere. Some have complained how you must use the Allen wrench to tighten these poles. Don't worry, you want the Allen wrench, there is no other way to ensure a stronger clamp without them if you aren't using the grommet. There are a couple parts that you must assemble for your base. It is very straightforward inside the instruction manual. What they don't tell you in the instruction manual, is that the plate for the clamp that sits on the two tightening poles DOES NOT lock in to the tightening poles for the clamp. It freely sits on top of them inside two concave cuts on the face of the plate. This does not, by my observation, hinder the ability of the clamp to hold the mount steady. NOTE: There is a piece of thin rubber with a sticky side that you can use to stick to the plate of the clamp to ensure a steadier hold, and a scratches desktop. The base acts as a middleman between two of your USB, audio + mic connections and your PC. There are cables that come directly out the other side of the base that can connect into your PC. This can be useful for a mouse and a keyboard, as well as your headset.Then, you will attach the bicep to the base. There is a flathead screw that you must adjust at the joint. The tighter it is, the harder it will be to turn your monitor arm via that joint. The looser it is, the easier. Do not make this too loose or it may pop off.This is the most important part: When you attach the forearm to the bicep, at the bicep joint, turn the big Allen wrench screw COUNTER-CLOCKWISE! This is what ensures your monitor stays off the desk and in the air. When thinking like an airplane, this is what ensures the altitude of the monitor. Try to turn this a few times until it is somewhat loose before attaching the monitor.The second most important part: Before attaching the monitor, especially if it is a large, heavy monitor like mine. Tighten the mount itself, the portion that your monitor will actually sit on. Tighten this screw significantly. This is what holds your monitor from pitching downwards automatically.Overall: I've had this monitor arm for a few days now. And I wrote this review almost like an instruction manual because it took me two months to find one. I did NOT want to flush 300 dollars down the drain on an Ergotron.It's a great mount, very sturdy, will certainly last a while. For my purposes, which are to set the monitor in a fixed position and moving it periodically, this is perfect and has freed my desk of an incredible amount of space. It is not the easiest to turn especially on the bicep and base joint, but it is easy to yaw and roll, in case you ever needed that.A couple downsides: the fact that the plate for the clamp does not screw into the poles, and I cannot pitch my monitor. However, this is negligible to me as I will never need this feature. 5 stars.

I used this mount for my Alienware AW3423DWF. Important note about that exact monitor model is that the back is cut out EXACTLY for a 100x100 VESA, and this mount wants you to slide it onto 2 top screws which is impossible to do because you have zero space for that due to how Alienware manufactured the back. What I had to do was screw in the back plate with all 4 screws and just slide in the silver pole part into the other desk clamp pole part. It wasn't all that hard to do by myself.This mount works great for my 34" ultrawide and I like the fact that it can support up to 43" just in case I want to get a giant screen one day. It took quite a bit of adjusting the gas spring screw to get it to stay up, but once that was all done it was super easy to adjust. I cannot believe how big of a difference just changing the position of your monitor makes. Being able to put it up high and tilt it down slightly makes games feel so much more immersive, I love it. I really do wish I would have gotten one of these long ago, no idea why I held off for so long.My only real complaint is the adjustment for tilting forward and back. It's a pain in the ass! You have to use a lot of force to tilt back, but at the same time you can't use too much force because then it will tilt too far back! I of course tried loosing the bolt but that doesn't work because then it can no longer support the weight of the display and it tilts all the way down. I think this part needs to use what a heavy duty speaker mount I have uses. Called a compression lock for sturdy angle adjustment. It has these notches underneath the bolt's head and the surface the bottom of the bolt head grips to. So when you adjust the tilt you feel it snap into place. I'm still very satisfied with it, and definitely recommend it.