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

I was very easy to setup the monitor stand. I'm pleased with the product quality.

easy to assemble and very solid for the price it’s a deal

Fantastic monitor stand. I have used it for a 27-inch LG Ultrafine 4K at the bottom, and a 30-inch electriQ ultrawide at the top. Plenty of room to have these mounted together, with a webcam on the LG's top edge. This stand was easy to assemble, and easy to securely fasten to the desk (I used an extra wooden block to create a thicker edge as my desk was only about 15mm thick). Getting the monitors attached was also easy - simply fix the VESA plate to the monitor, then measure where the monitor mounts on the stand need to go, tighten them, and then simply lower the monitor onto the mount. The cable guides are great too. I now have a great setup and cleaner cables. Very stable too even if the desk is bumped or I adjust one of the screens for tilt / rotation.

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.

I have a 39" LG Ultrawide OLED mounted at the top and a 27" Acer Pulsar monitor mounted below it and it fits perfectly and was easy to install and clamp to my desk. You can swivel and tilt to get an angle you like.