Mount-It! Under Desk Keyboard Tray, Adjustable Slide-Out Keyboard & Mouse Platform, 26.5" W × 10" D, Ergonomic Wrist Rest, Height Tilt & Swivel, Heavy-Duty Bolt-On Keyboard Drawer

Perfect for my narrow tall standing desk. My desk is only 18 inches deep, so in lieu of installing it the Track the “normal way”, I installed it horizontally / sideways. This allows me to move the tray Left to Right instead of in and out, which is great for centering the tray within my workspace. The product came in perfect condition, easy to follow instructions, an is very well made - albeit a little bulky at the bottom. The single lever to adjust the unit vertically is super easy. This was definitely a great purchase

Been waiting to write a review after using it for several months. The only complaint I have is that I need to grease it because it squeaks a little bit from turning, but that is expected and normal. There are moving, functional components, which will always require preventative maintenance from the owner. When extended, you cannot put your full body weight on it without it flexing a little bit, but that is not why we bought it. It is extremely useful for our situation and we’re very pleased with it.

Overall, the best under-desk mount that I've found for its range, not only in how close/far you can sit to the edge of the desk but also how high/low the tray can go as well as the angle you can set for the tray itself. I have a three-monitor setup with sit/stand mounts and adjust my workstation frequently as I work long days. I've tried a number of keyboard mounts but this is by far the most customizable. The keyboard tray is uncomfortable, however. PROS: *If I bring the keyboard tray to the front of the track it extends to a nice 18 inches from the edge of the desk. This is great during long zoom meetings when I want distance from the screen but may need to type a few notes here and there. I can also comfortably stand and type without "maxing out" the height. The mount has full 360 rotation making it easy to adjust the angle to align with my monitors when I move them. I can also adjust the angle of the tray so that the top of the keyboard is lower than the bottom, which helps ease pressure on the wrists. CONS: The keyboard tray/shelf is the cause of 4 instead of 5 stars. First, there is a bar that extends along the bottom edge of the tray. It is narrow and hard. The bar has a thin layer of padding, but not much. Since it's narrow (~1 inch) it cuts right into the wrist or palm and feels like I'm resting my hands on a ledge. Even with a wrist pad it cuts into the arm and has caused some numbness after a long day. The pad is glued onto the tray so it's possible to remove, but a pain to do so. Second, the keyboard tray has a slight springiness to it so that when you rest your wrists on the tray it lowers about .5 inches. Maybe a benefit to some? But a bit annoying for myself as I'm particular about the height of the tray. Since I work long hours it's important for me to have things "just right" otherwise it can cause a lot of physical pain. Third, if you like to have your feet flat on the ground or in a wide position, you will hit the lift mechanism with your kneecap. The lift is on the side of the tray, and extends ~1.5 inches in depth, and is ~3 inches wide. Similarly, if you like to work with the keyboard at "lap height" so that your arms naturally rest on your thighs, the length and springiness will make it so the tray feels like it's resting on your legs. Lastly, the tray is set up so that if you have both the keyboard and mouse on the tray, the keyboard is not centered to your body. This means that one arm or both arms are reaching further than need be to access either of these tools. This causes a lot of shoulder/neck pain in the long run, but if you center the keyboard then there is not much room for the mouse. Still the best mount I've used. Would recommend.

I've been looking for a tray for my taller than normal floating desk and I needed something that could go low enough while sitting and tall enough for me while standing. Took me 2 hours to install it but the process was seamless. Things to note of you have a desk made of MDF or substitute wood: - reinforce the plate/rail with a 1/2 inch thick wooden board - spread thin layer of gorilla glue on one side of the wood and press onto the underside of the table (in my case an IKEA countertop) - drill the guide holes into the wooden board - fasten the plate/rail with some stronger wooden screws that are long enough to penetrate both the board and table - finish assembly I have more confidence that the tray won't fall on my thighs and feet now. I'll update this review in the future. Its heavy but looks sturdy and be aware of the length of the rail. You may need to cut the length to accommodate the depths of some tables.

Mine came in not right condition (Amazon gave a discount for the damage) but there are a lot of issues. For the big one, I am not sure if it is only mine or if maybe I was missing a piece but the slide was big enough that rocking it at all in the slide resulted in it falling out of the track. This thing is heavy enough that it dented my floor. If my foot had been over about an inch I would be in the hospital. I was able to mount it so it wont happen again with some extra hardware but I really don't like it. Now for the issues I am sure aren't caused by missing hardware. First is you have to have this thing way back unless you want to be sitting way back from your desk. Other reviewers have noted this as well. This would be way more usable if the tray also rotated as you would really have a lot more adjustabilty. The keyboard tray is okay but every move makes you readjust. I recommend against this one.

It’s not mobile enough and doesn’t go under my desk. I will replace it for something better.

I bought it used. The instructions are difficult to understand. I had to professionally install, and I'm glad that I did. It turned out so nice. Perfect height for my elbow position/rest. I'm a short person. I love the long, wide body because I have a keyboard with a cushion and need more space.

Sit Stand Keyboard Tray - I had to knock off 2 stars for a flaw in the design and a very bad description here on the site. Multiple times the description quite clearly states that 25 inches is needed for the track: Incorrect. Track with end piece is 25 1/16". Worse: the instructions make it quite clear that to properly install the track, 29 1/2" (750mm) are required. (see photo). The instructions call for 30mm in front of the track (1 1/8") and 3 3/8" behind the track to allow the arm to fully move in the track. Minimum available install distance must be 750mm or 29 1/2" per the directions packed in with the Sit Stand Keyboard Tray. If one mount with only a 25" inch space you will be left with a keyboard tray that hangs out from the desk 4 1/2". This will be because the arm cannot go all the way back in the track just as the instructions showed (see photo of arm hitting back of desk). The second issue is a flaw another reviewer mentioned about getting stuck half way down the track. The weight and balancing is such that it will bump and get stuck on the midway screws holding the track up. I was able to alleviate this issue some by slightly filing the head of the midway screws. Ideally the manufacturer should better design the arm piece so there is a clearance channel for the 2 screws. Another issue is with the description of distance above and below tabletop. As I answered on a question the text is wrong and the graphic is right. The graphic shows it correctly. 8.7" above the table BOTTOM and 4.7" below table BOTTOM! The text saying tabletop is WRONG. With a 1" desk that means 7.7" above tabletop and 5.7" below tabletop. Corrected Text Might Read: HEIGHT ADJUSTMENT: 4.7" below the table underside and 8.7" above the table underside. Other things of note people may find important. On the Sit Stand Keyboard Tray the wrist support comes pre-installed and is stuck on with what feels like a foam sticky backing. I have not tried to remove it but it does feel possible based on some pulling and tweaking to get my mouse pad slightly stuck in. The tightening of the Tilt lock can get a bit annoying at times. I will say this. The tray itself is very stable and holds quite a bit. I have 2 mouse pads, a Logitech G15 Gaming Keyboard (old version with 18 G-Keys) a G700s mouse, and the base unit for the Asus Strix 7.1 headset. I am able to press the mute on the headset without shaking the keyboard or tray in any way (for those unfamiliar the bit round button the Strix is a bit hard of a press to go mute mode). TLDR: Stable, but really requires 29 1/2" to go under the desk.

I purchased this key board tray a few months ago for my home office. After about 1.5 months, the lever for adjusting the height no longer works, I definitely can't use it in standing position, and most of the time I can't lower the tray to push it beneath me desk. If I wiggle the cable that attached to the the lever and wiggle the cable going into the arm of the key board tray I am sometimes able to adjust the keyboard tray enough to adjust it. Very disappointing for the price. I will need to dispose of this one and order something totally different.

The bracket to install under the table is wider than the tray insert, so if i try to slide it in or out it will fall out. Because of that the tray was not straight, it was tilting. I would have loved to keep this but I had to return it.

Philips head screws are the worst the install went much easier once we replaced the screws with robertson head. The tray is large enoug for an ergonomic key board and mouse but is a little shaky when using it not enough to cause problens though.