Mount-It! Heavy Duty Under Desk Computer Mount, Adjustable CPU Holder with Sliding Tracks and 360 Deg Swivel for Desktop Computer Towers Up to 10 Inches Wide and 22 Inches High, 66 Lb Load Capacity

I found this desktop mount after a lot of research. It is very sturdy and well made. I wanted to mount my new Dell under my desk and have the ability to twist the machine which this mount allows. I found the installation relatively easy and adapted it to fit the underneath of my desk. You can adjust the length and height of the mount to fit the desktop of your choice and even though the Dell Alienware is a odd shape, it fits nicely into the mount which you can secure by tightening the bolts using the handy handle. It was expensive for a metal mount but given its holding a very expensive desktop it was all relative. Well that was my excuse in my head anyway!

after measuring and mounting to the underside of my desk. I found out that the metal plate that sides into the track is to small and any movement WHAT SO EVER will cause it to fall out of the track. As i have a motorised desk that goes up and down this movement causes THE CPU HOLDER TO FALL OUT OF THE MOUNT and hit the floor...... USELESS