THE WORKFIT-TX
The top MDF piece/tray of the WorkFit-TX is 81mm long (93cm for the front end) and 68.5cm wide while the keyboard MDF piece/tray is 71cm long and 20cm wide.
You can raise/lower the desk by simultaneously pulling two levers found on both sides (Ergotron has placed their logo on them).
Both scratch-resistant MDF trays are up to 17mm thick.
As you can see the keyboard tray is large enough to hold a full sized keyboard (and a large one at that) and a mouse.
The keyboard tray also has two levers (one on each side) which you need to pull in order to move it up and down (you can also tilt the tray by raising it from the front and adjusting two feet it has beneath it).
From its lowest point of just 51.6mm the WorkFit-TX can go all the way up to 430.4mm via an infinite number of click-free points.
Ergotron has used a durable steel frame with 12mm thick parts.
Underneath the top MDF piece there's a cable routing channel that leads all the way to the rear.
Speaking about the rear there are two holes here which can be used with monitor arms.
I was slightly surprised to see that these areas have been reinforced with metal plates so there's pretty much zero chance of something bad happening.
As already mentioned, the cable management channel extends all the way to the rear of the top MDF piece (here you may want to use the bundled cable holders).
With a weight capacity of up to 18.2kg for the top (and 2.27kg for the keyboard tray) you are able to place even a 40 inch screen on the WorkFit-TX (even though Ergotron states that the maximum supported size is 30 inches - unless that is in regard to the monitor stand you can mount here).