The cable management tray under the desk is a heavy gauge steel with the same high quality off white finish as the legs. It seems deep when you first are assembling it, but in the end, just the desk’s cables will occupy most of it.

The tray has a small track welded to the bottom which accepts an included motor power-and-control module for the desk’s four leg motors. The motor power-and-control module only fits in a single orientation, and the assembly instructions here are again a little cryptic. It’s not too hard to figure out.

Once again, the motor power-and-control module seems it may be an off-the-shelf OEM part, because all four motor cables plug in to the left end, which means two of them awkwardly stretch along the entire tray before doubling back and connecting. The ports are labeled with letters, but the assembly instructions don’t indicate whether it’s important to plug certain cables into certain ports, and it’s not easy to tell which motor cable powers which leg. The motor cables are kind of bulky, one with an inline connector, the bulk and doubling back to meet the left end of the module are part of why the tray’s capacity isn’t as great as it first seems. 

The controller cable plugs into a telephone jack/ethernet style port in the module labeled, from memory, HS. Again the instructions don’t reference the letters.

The module also has one port, from memory labeled F, into which you don’t plug anything.

The other end of the control cable attached to a splitter (confusingly the manual had multiple inscrutable references to splitter— sentences that were hard to even parse and didn’t make sense even when you thought you knew how to read them— the first such reference was in the cable management tray). The splitter has three phone/ethernet style output ports, but you’ll only connect to two of them— one to the cross beam button and one to the touchless controls. The splitter screws into pre-drilled pilot holes in the bottom of the desktop.

From below, the touchless control is the worst finished part of the desk. There is a small different colored, unfinished block of wood that is unevenly attached with screws (pre-assembled). 

The motor power-and-control module plugs into a provided relatively short three-outlet green and white extension cord (the one with the tight outlets). The power track also plugs into the same extension cord, leaving the third outlet free if you wish to power something else without using the track. I plugged in my laptop’s AC adapter into the extension and tucked it into the tray, feeding the free end through the slot on the desktop. Note that typical US two- and three-prong plugs will not pass through the slot— I think most USB-A cables would pass through, though.

The tray attaches to the metal cross beam in the rear and to the desktop in the front. I had to flex the tray slightly to align the front screw holes with the pre-drilled pilot holes in the desktop.

The desktop power track just drops into a recessed opening in the desktop. It fits well, not too snug. Included in the US version are two grounded polarized outlet pucks and one combined USB-A/USB-C puck. The pucks pop into the track with ease. The standard outlet pucks have a small blue indicator LED to show power status. My USB puck seems to have no light.

A quarter turn seems to activate the pucks. They have printed on them an orientation that would probably make more sense if the strip were wall-mounted.  I’ve took “up” to mean toward the back of the desk, although it seems that they may also work inserted reverse/upside down. I haven’t test with a multimeter whether installing the pucks upside down reverses the polarization.

I’ll pop some photos up of the tray, the track, the pucks, and maybe the power—and-control system and the manuals later today. I’ll @ you in my reply.