This is the Swift Switch switch swapping and cable management tool. 

As a senior network engineer, I often perform switch replacements in various types of infrastructure, and sometimes managing existing cabling can be a nightmare. In the past I would use a full patch panel as a dummy switch to hold the cables of a switch being replaced or when maintenance is performed to keep their relative port association the same during the swap and to avoid cables ending up back in the wrong ports and causing headaches later. Patch panels are pretty heavy, not purpose built for the task, cannot be split into multiple sections for better ease of access to the switches when existing cabling is a complete mess, and they are expensive. 

The Swift Switch solves all those problems.

• Lightweight - Holding it up for long periods of time isn't difficult and it's not too heavy to let it hang from the cable when you need a break.
• Purpose Built - The entire design of the swift switch is design for ease of use and functionality. The dummy ports are sized just right so the cables aren't hard to insert or remove quickly, the numbering for the ports is easy to read and see from top or bottom in whatever orientation you happen to be holding the tool, and the ports follow the same orientation and similar spacing as a real switch to make the cutovers easier with less cable twisting.
• Modular - The Swift Switch is designed in 4 sections that can be easily separated or snapped together securely when you want the full size of up to a 48-port switch, or as small as 12 ports. The sections can also be used for modules on a chassis style switch
• Cheap - The Swift Switch Uses less than 200 grams of filament for every part in the profile, but the 4 modules themselves only use around 135 grams. You can make 7 whole units with a roll of filament and that would still cost less than half the price of a regular 48-port patch panel.

Additional Features:

• Slots on the back of each module to insert Velcro loops to help carry or hang the modules.
• Slots on the back of each module to hang them on a screw, nail, hook, or peg
• Endcaps that can be printed in different colors to make them more stylish if that's your thing. You can also put labels on them so that if you work on multiple switches or switch modules simultaneously you can keep track of them easier. Also included is a set of slightly longer endcaps to make gripping the ends of the modules easier or putting labels on the tops instead of the sides. You can also use the endcaps as test prints to test tolerances. You can use Orca Slicer/Bambu Studio to emboss custom text labels into the part in the slicer if you like.
• Additional Adapters are included that allow you to connect multiple additional modules or extend the distance between the modules, or if you're a maniac and want to make a super Swift Switch lightsaber or whatever.