This keyboard stand/drawer is exactly what I needed to keep my desk clear and puts the keyboard at the right height for me. I previously bought another type that slides out, but it was the wrong size for my desk and I had to return it. This is a great option, it holds a keyboard with number pad and allows enough room for me to use my mouse as well. I wouldn't put too much weight on either end, it only has one attachment point, but if you are sensible, it's going to do the job.

It was easy to attach to my desk, and actually allowed me to utilize a corner area for my keyboard, which is great. The clamp is kind of big, but it's fine for my use.

I would buy this again if given the choice.

So far this tray is fantastic! I got this because I have a sit-stand desk and noticed I was getting back and shoulder pain (couldn't get the alignment of my monitor + monitor arm, desk, and chair quite right). This keyboard tray helped me relax my shoulders by increasing the distance between my resting arm height and the height of my monitor, which changes depending on whether I'm standing or sitting. An added bonus is that it clears up the rest of my desk to put other stuff on it like books and notes etc.

- Setup: Extremely simple! There are only 2 parts to attach and the wrist rests are easily added or removed. I only use the smaller wrist rest.
- Build quality: Very sturdy and the parts move and rotate smoothly. I have no problem adjusting them with the little wrench. I can comfortably rest my hands on the tray and it doesn't feel weak or wobbly. My cat even walked across it quickly before I could stop him and it held up fine haha (though I think the product description advises against placing anything too heavy on it for safety).
- Size: It perfectly holds my Logitech MX Keys (full-size) keyboard and trackball mouse with some room left over.

Overall great purchase, I highly recommend it!

Finally, a keyboard tray that works for me! I had to place the keyboard tray a little off center so that I could rotate it under my desk but it works perfectly. It's sturdy so I don't have to worry about the keyboard bouncing about. Plus my mouse fits next to my keyboard with room to spare. I had no problems installing it. Simply attached the keyboard tray to the metal part with screws. Make sure you turn the metal part so that the section to be screwed down is flat on the keyboard surface. Tools were included. Attaching it to the desk was just as easy. Total installation time was under 5 minutes.

I was so excited when I found this product after several minutes long Amazon searches. The concept allowing the keyboard tray to swivel without requiring any installation using screws or drills was exactly what I was looking for.
It was very easy to assemble; it took about 5 minutes.
The issue is that the C-clamp and the knob are so long that I can't use my chair at the desired height because the keyboard tray is so low, so I can't scoot under the desk (or tray) to a comfortable level.
I understand that the length of the C-clamp provides maximum versatility for desk thickness of various sizes, but then you also have the knob below the C-clamp used to tighten the tray on to the desk, but it adds probably another 2+ inches to the length of the C-clamp.
If the tray tilted or could be raised that would probably help, but since the primary feature of this tray is to swivel, then maybe the knob should be made smaller or removable (i.e., only attachable for the purpose of screwing on the tray and then removing when done).
The tray could also be a little bit wider.
I'm trying my best to work with this tray though, so I attached it closer to the left side than directly in the middle of the desk to give me a little more flexibility with the chair position but I still had to make my chair height lower (also undesirable).
I'm also wondering if an attachable mouse tray would help, although I'm not the most excited about spending more money for keyboard/mouse trays.

Works for holding a single keyboard, to small for mouse with a numpad board(known before buying). I'm not sure I'd be comfortable using a mouse on it though, worry downward pressure to one side from intense mouse use could cause issues with this being center mounted. If you plan to use this primarily for a keyboard it's a good choice if you have the real estate and flat stable edge to mount on, wish a similar longer design was available, but that I'm not sure would be possible with a single mount point.