EUREKA ERGONOMIC Height Adjustable Mouse & Keyboard Tray Under Desk, 28x10'' Large Slide Out Swivel Tilt Computer Keyboard Drawer with Mouse Pad for Gaming Home Office Desk, Dual Mount

I used this for a custom built desk, and it fit perfectly. The keyboard tray seems to be holding weight perfectly fine even after six months of almost daily use. The keyboard mat is very nice and slippery, great for gaming on. The shape of the mounting bracket is perfect for going around support structures under the desk, and is actually adjustable which is very convenient.

This tray is fantastic. I would buy it again in a heartbeat. I just don't think that i'll get to that point. I'll go into a bit more detail.Comfort: This tray is very comfortable. It is very easy to adjust. Adjusting this tray is all done via one knob, which is located under the tray. This knob is the only problem that i have with this tray. This knob allows for the entire tray to be adjusted to fit your needs, which is incredibly simple to use. The problem is not with the ease of use, it's with the location. When i slide this tray over my lap and then i slide my body under the tray, this knob resides exactly where my knee wants to be. Disregarding this unfortunate placement, this tray is extremely comfortable, and even offers some limited negative tilt (which i prefer)! At first, i was concerned by the method that the tray slides back and forth, which is just some sliding plastic on metal rails. After using it for a while, it occurred to me that the design was simple on purpose. It is not easy to slide, which keeps the tray in place without requiring a locking mechanism. This allows me to slide the tray in and out without adjusting any knob, but also keeps the tray in place unless i want to move the tray!Sturdiness: This tray is very sturdy. I am the kind of person that leans on the keyboard and slams on the keys (from learning to type on a typewriter), and this tray doesn't even budge when i type on it. It feels like i'm typing on a desk! It allows for multiple movements, which do not affect the sturdiness of the tray. This tray is incredibly sturdy. I speak about how i mounted it in the next paragraph.Easy To Install: This entire tray was not difficult to install. The tray arm assembly can come out of the rail itself, which makes installing the rail underneath very simple. I installed this using the standoffs, as i have a very complicated situation on the underside of my desk. There are actually more orientations under the desk than are advertised, as there are extra holes in the rail! this made it so the very limited space that i had under my desk could be effectively utilized. I would recommend pre-drilling some pilot holes in your desk to ensure that assembly is easier, but other than that this was a breeze.

Works well for electronic standing desks - it fits over the bars nicely and provides more cable routing support under the desk if needed.A little wobbly left to right but not a huge deal. Its the spacing of the slide device not the tray itself etc. Everything feels solid and is pretty well machined.My biggest gripe with all of these types of under desk keyboard trays is that they never come out far enough. For tall people who like to put their legs up and not have their face right in the screen, they need to come further out.The palm rest for me was extremely hard and caused a lot of pain. I was so thankful it wasn't glued on and could be unscrewed from the bottom. Plus it provided a bad angle for my keyboard, mouse, and chair. Now that leaves three holes in the tray but whateves. It would have also been nice to have had a full tray mouse pad incase you wanted to take the wrist pad off. I've bought a couple full size that I'm going to cut down to size and use double sided tape probably.I am actually considering making a new keyboard tray that is longer since that's probably the easiest modification to get some extension from it.A manufacturer fix could be: they could make the slide metal longer and have a couple stop locks that can be repositioned to allow the tray to slide out longer for people of different heights that need to be a bit further away.Another thing for standing and typing that might be good is an attachable tray wall on the top for negative incline typing.Overall, I am fairly impressed with this keyboard tray and the flexibility of it. I hope they address my concerns for the next version or separate version released.Lastly the adjustment knob underneath, its not the greatest and does hit the knees sometimes and you need to reposition, but not terrible compared to others I've used. I've only seen one other super expensive brand that had a longer metal arm and small adjustment knob on top, but that one itself had tons of flaws. Something like that probably wouldnt work with this design.Another thing to look into if you need more flexibility and ergonomics like me, is using a wireless keyboard and mouse and trays that attach to your chair instead of the desk.