KensingtonKeyboard Tray Under Desk, SmartFit Ergonomic Slide-Out Keyboard Drawer with Cable Management, Extra-Wide Height Adjustable Keyboard Holder, 24.5" x 11.75", Black K60004US

Firstly I thought of getting a clamp type tray which I later confirmed would get in the way when I move things around on the desk. At least it wasn’t for me. There was another type of product in the same price range. It had smaller width, but had a separate mouse pad base linked to it, which didn’t seem to be solid enough.I finally chose this one mostly because of the extra-wide inner drawer space (24.5”) which I knew would give me a lot more room to maneuver my keyboard and mouse within a single drawer space, thus giving me more position tolerance. At first look, I wasn’t sure if the rails and brackets were solid enough, but I trusted one of the other reviewers who said it was. The brackets and rails are solid and sturdy and it shouldn’t be a concern, unless you would mean to abuse it. I’m very satisfied with the product and I’m happy that I went with this one. Now my hands nicely hang and rest when I type or use mouse, giving no more strain to my wrists or elbows.Unless you have a desk you can flip over easily for the installation, some measuring, simulation on the optimum installation position, and actual installation under your desk could take some time. Price was right and I would select the same product if I had to do it again. BTW, wrist rest pad and mouse pad came along with the tray which was great. The mouse pad could be better, so I threw in my old mouse pad in there as well. The wrist rest pad, however, is great and no complaint.

The design is simple and installation is easy to customize. My “desk” is actually a table that has a storage area underneath, so I couldn’t just screw into the particle board and trust that. So I bought some bolts and wing nuts, drilled through the bottom of the table and added some wide washers for extra stability. The wing nuts will allow me to remove the tray easily if I ever need to use this as a table again. The brackets also needed to be reversed to fit the width of my table and it worked just fine. I’ve bought other trays before that were a pain to put together but this was really easy. It took about 30 minutes to install.I like that the tray doesn’t slide in and out too freely, so it doesn’t try to slide back in as I’m typing. It’s wide enough for a full keyboard and mouse. It comes with a wrist rest and some foam I assume is for a mousepad, but I just use my own mousepad. I would buy this again if I ever need a second one.

Works as advertised, but doesn't have enough adjustment for my needs.Pros:Installs with shipped hardware for any desk 3/4" or thicker. I don't know what all the noise is about screw holes not lining up.Slides out easily, with a positive lock when pushed all the way in, under the deskFairly sturdy plastic. Middle flexes a minor amount when I rest my hands on the keyboard.Cons:Adjustability - Proper ergonomics recommends a negative tilt and a height just above the thighs. This tray sits flat and drops a maximum of three inches below the desk. It doesn't come anywhere near my thighs and is uncomfortable for these reasons. Once installed, there is not adjustability other than sliding it in and out from the desk. I may place wooden blocks under the brackets to get some extra drop below the desk if I don't end up returning this. I could potentially get a negative slope by using different mounting holes in the brackets, but I haven't tried it yet.SmartFit - This is a silly hand template. It recommends positioning the space below the desk based on the size of your hands. Larger hands equals a larger drop. This seems backwards to me. People with smaller hands tend to be shorter and would want the largest drop. I have a small to average sized male hand and even at the largest drop the keyboard is not usable for me without sliding it out from under the desk. Regardless, this seems to be more of a marketing gimmick than having any relation to ergonomics.installation: Mounting to the underside of the desk could be made easier if a paper template was included. I installed this myself and it's not easy to line everything up and install when laying on your back reaching up. I also found my spacial logic was impaired when in that position. I made careful measurements, marked the underside of the desk, and drilled a pilot hole for the first screw to get myself started. 3" in from the front edge of the desk is a good location for the screw for the front mounting brackets. Spacing between left and right bracket screw holes is 27 1/4"Black Mouse pad: Minor complaint here. Most mice are optical these days. Black doesn't reflect much light and reduces battery life on your mouse.Return shipping: not included if you don't like the product

This tray worked great. It also included a wrist rest and mouse pad, which I didn't realize when I purchased it. I did have to adjust the normal installation because my table wasn't wide enough. I turned the brackets inward instead of outward and place the screws in a different area to counter balance the installation. I will tell I have small hands and I set the tray at the tallest setting and with the wrist rest I don't have room to use it partially pushed in, which is a habit of mine. If you pull the tray out to use it then, it should be fine. If you don't then I would do like at least one other person who attach strips of wood and attached the tray to those instead.