W1-3D

Really well engineered product. Works like a treat and was easy to install once I figured out I needed to loosen the gas arm in order to get the arm in the down position so I could find the right mounting point. Mounting holes have enough room that you can still line up after fitting the rawlplugs. I used different plugs because I'm fitting to plasterboard. Didn't end up needing the extension arm, the product can work with just a single arm. Love the little spirit level provided..

The Good:* Delivered quickly* Packaged well* Easy to fit and assembleThe Bad:* Incorrectly rated at "43"/49" Ultrawide, up to 8 kg (17.6 lbs)"* Extremely difficult to tighten the link in the image sufficiently to hold a 39" display vertical* Wall mount and extension vertical posts do not employ roller bearings or even smooth bearing surfaces but simple painted castings so horizontal movement is very stiffThe Ugly:* The vertical link in the image is poorly designed; it should really have serrated surfaces and washers to prevent the display falling forward or a thumbwheel screw to adjust the vertical display alignment rather than rely on a pinch bolt of insufficient size* Extension arms are held on vertical posts with a sprung bolt screwing into plastic trims with surprisingly sharp edges The thread in the trim gags on the bolt thread and spins the trim round so consider wearing a heavy glove to hold the trim - I now have a sizeable gash in my finger from itConclusion:This mount is unsuitable for 39" ultrawide monitors, whatever the description saysI should have spent double on something more capable

I bought two Wall Mounting ARCTIC W1-3D arms for my computer monitors in my office. They came with all the fixings I needed and even a mini spirit level. They are good quality, the range of movement on them is great, exactly what I wanted.

I chose this arm based on the fact it says it can handle ultrawides, specifically my 34" ultrawide. While technically it does support it, the stability is terrible. The added weight makes it really difficult to adjust the monitors position, and it honestly was just a pain to even get the monitor level. I tried mounting it in two different positions on the wall, and neither made it particularly easy to use. The battery in my drill died so it's currently still mounted to my wall, in it's current position I might slap one of those laptop trays on it and just use it as a floating laptop stand, it should be able to handle that just fine.EDIT: Update, after adding a tray to support a laptop I'm now using this arm as laptop stand. The adjustment up and down is great, but anything that requires the two arms to pivot is quite difficult to do. It's not the easy fluid motion a lot of online videos lead you believe.

I used this to wall mount my Acer X34P ultrawide and I can't fault it. Very sturdy and plenty of movement range. Highly recommend.

Easy to install and quite sturdy

Will not hold a normal 35 inch ultra wide with the gas strut set to max. It doesn’t even come close.

Mine was awful, the vesa plate was not straight, had to use a hammer to move it, had loosened all bolts. Could not move the arm down, had to stay in upward position. May just be mine, but think before you buy.