VIVOAdjustable Computer Keyboard and Mouse Platform Tray Deluxe Smooth Rolling Track Under Table Desk Mount, Black, MOUNT-KB04C

I've had a lot of keyboard trays. I always ended up with issues every time. The screws mounted to the wood would always pop out. The tray would get stuck. This is the first keyboard tray I'm happy to have. It looks sleek, feels sturdy, and boy is it heavy. It's also very adjustable. My only complaint is that it's mounted via 4 screws. Due to the weight of this product, 4 screws mounted to wood would likely fall out over time. I don't fault the manufacturer for this as you can do whatever you please with those screws. I mounted it directly to the metal supports of my desk to ensure it would stay sturdy. Now, only time will tell.EDIT:Has held up well for two years now. The only issue I've had is occasionally you need to re-tighten this tray if you use it quite often like I do. And by occasionally, I mean like once every two months. It's not a big deal at all. For the price, the quality, and how well it's held up, this product is worth it.

Installation instructions are good and should be followed. We installed two identical and second was easier. Important to determine seating at desk. We have filing cabinets under desks so tray had to be placed accordingly as to where operator will be sitting. Tray provides nicely for keyboard and mouse. The tilting and swivel features are nice.

The corner unit (and the Vivo keyboard holder) makes computer work easy again. With a little trial & error, you can easily make the most frustrating desk design efficient and user friendly. The corner piece attaches easily, as does the Vivo keyboard tray and mouse holder. On the side of the keyboard tray are two #10-size bolts that can easily be tightened to lock the keyboard to your favorite position, yet still, be able to hide the entire tray assembly under the corner unit and out of sight. Makes any corner-type computer desk user-friendly and personally adaptable.

It works with my stand up desk but the knob to tighten up the mechanism to hold it in place does not do a good job. I am constantly readjusting the platform to move my keyboard to the correct location.It works, just expect to keep adjusting it because it won't stay in place.

I really like the strength and stability of this tray. It's very easy to install and adjust to your preference. For a long time I was experiencing shoulder pain, which I thought was caused by using my computer keyboard and mouse on the tabletop, and keeping my shoulder in the same position for too many hours at a time. After installing this tray I can keep my hands at an adjustable position, reducing the strain on my shoulders. It's very easy to move up and down, in and out, and change the work angle. After a few months I realized I was no longer having the pain in my shoulders and I can work more hours with less stress.

I've been very satisfied with the rugged build quality and helpful buyer's guides / assembly videos from VIVO. This keyboard stand has flawless, heavy duty metal construction, a track with more than enough range, and easy to use adjustment knobs. And like all VIVO products, they are aggressively priced relative to the "luxury desk accessories" market from Uplift et al. What would earn a fifth star?* 1-2" deeper tray, that could accommodate Logitech ergo keyboards without overhang.* More negative tilt -- I could see myself wanting 30 degrees or more when my desk is in a standing configuration.In fairness, the tray meets its advertised specs exactly -- some of this is on me for not wanting to pay 3X for products with a few degrees more tilt. Still, I feel these improvements could be made without compromising VIVO's outstanding value proposition.

I use it for work and I have the tension as tight as possible, but the tray keeps lowering while I'm typing so I have to release the tension, reset the tray position, tighten again and start all over just to have the tray eventually lower again. This is not good for someone trying to work a production based job. This might be good for light use, but not good for people who use it frequently. I'm so disappointed this isn't going to work out since it was so expensive and I'm going to have to hunt for another. I give it a 2 because the wrist guard isn't too high and the size of the tray is a pretty decent size.7/16/18: One Month and 2 days later: Product can no longer be used and is now sitting on the floor about to be trashed. I kept having to adjust it, but now the tray is so fragile that it tilts on to my lap with even the slightest wrist pressure applied. Today, I had to stop working and clock out to remove it from my desk because it kept tilting on to my lap and I couldn't work with it.I logged on to Amazon to start the return product process only to see that I was 2 days beyond the return date, which fell on Saturday, June 14, 2018. Yeah, I couldn't believe it myself. 2 day late, so there goes $60.00 wasted, but I guess I partly blame myself for not returning it when I first saw there was an issue; I was desperate due to shoulder pain and this did help for the short time I had it despite tie constant readjusting until today when the bottom of the tray kept laying on my thighs and the top of the tray was in the air. I would adjust it to be level, apply my hands to the home keys on my keyboard and this this thing would tilt like the Titanic with the bottom part in my lap and the top part in the air and my forearms were even resting on my chairs arm rest! I'm not a big woman, ok? We're not talking about a 20lbs arm with where you can't tell where the hand ends and the wrist beings. I can wrap my little finger and thumb around my wrist and they can touch without the use of a bungy cord, so there's no reasoning behind this tray not supporting my wrist while my forearms are supported by a mack daddy Herman Miller chair. And that's not a humble brag bc I clearly did not did not pay full price for that chair because if I did then I wouldn't be complaining about wasting $60.00 on a terrible keyboard tray, I'm just saying that the forearm was well supported, so I place the rest of the blame on the company charging so much on a product wasn't made well at all.