HUANUO Vertical Dual Monitor Mount, Stacked Monitor Stand for 2 Monitors with Height Adjustment Computer Monitor Arm Supports Two 17 to 32 Inch with C Clamp Each Desk Mount Hold up to 17.6lbs

Exceeds expectations, solid, well-made and great engineering
I wish I could have gotten one of these years ago. My desk design does not allow for a clamp-on solution so I have been using a vertical monitor stand for my 27″ 4K and 25″ 2K monitors, and the base of my old stand took up a huge portion of my desk space. This can be grommet-mounted, all I had to do was drill a 1/2″ hole through the top of my desk and screw it together from the bottom. Whether you go with the clamp or the grommet, the foundation is VERY solid and stable, the shaft is heavy steel, much more robust than what i expected.They did a great job with the VESA mounts too, they designed it so you have a set of VESA plates that screw to the back of the monitors, which let you slide them down onto the VESA plates that are attached to the stand, versus having to hold the monitor with one arm while screwing in the VESA plate from the back because it is fixed to the stand.Once attached, you can slide the monitor up or down the shaft and tighten the collar; you can twist the monitor left to right as well as tilt it up and down. They even included cable management rings that have slots for the 3 hex wrenches that you use to tighten the various adjustments! Someone really thought this through! Instructions are clear, although the design is so simple you probably won’t need them. Absolutely worth the money.

good product, does what it promises!
I am not really the type of person to leave a review but I was so impressed with this product that I just had to. My dilemma was that the two monitors I wanted to use (one 25 inch and one 34 inch ultrawide) could not fit comfortably on my desk side-by-side. I was initially hesitant to stack vertically because the ultrawide monitor is very heavy (~15 lbs) and I would’ve wanted it to be the top monitor for movies, browsing, reference material, etc. Not only was this monitor stand really good for the price, but it looks beautiful and the glass base seems sturdier than I thought it was going to be. I now have the ultrawide mounted on top as pictured and it seems to be held up wonderfully. Tilt and swivel mobility is great. Setting it up was a breeze, maybe 15 minutes tops if you’ve ever mounted a monitor before. Try and buy it while it has a coupon running!

Most amazing and budget friendly stand
I bought a new 34″ 21:9 1440p monitor, so my desk was no longer big enough to have a second monitor on the side. I used this stand to mount my new monitor on the bottom, and my old 24″ 16:10 monitor on the top and it has worked out great. I think I like this setup even more than having a monitor on the side, my desk looks cleaner and more refined with just one stand, and I’ve also reclaimed a little desk surface space (behind the monitors) since there aren’t two stands taking up surface area. Assembled easily. Very sturdy. All needed parts present and neatly organized in heat-sealed pouches. The plates that attach to the monitors mount smoothly on the receiving brackets on the stand and then can be bolted in place. Easy for one person to assemble. Nice cable guides on the mast to keep your cable clutter to a minimum. By using the included Allen wrenches the brackets can be slid to just where you want them. You can set up display angles unique to each monitor or set them up identically. Nice quality for the price point. As a note for those who do not work a lot with VESA 100 (or 75) mounts, be sure to check the threaded stud depth with the monitor manufacturer. The kit comes with a variety of screw lengths and washers to make up any monitor that is VESA prepped. However, some of the reviews that mention problems with screws probably did not check the stud depth and failed to add washers or used too long screws and bottomed out their screws in the stud and over torqued them. Overall, I found this to be a very handy setup.

What you see is what you get!
Double-stacked 2 x 32-inch monitors, just like in the pictures… sturdy and simple to assemble; looks great and frees up the remainder of my workspace for actual work. Would definitely buy again.