First time we have tested a range extender from TP-LINK it was in a form of a network powerline kit, and while it worked without interruptions, the resulted speeds two rooms distance was quite a bit low. RE580D is a much improved AC1900 version, which does look like a simplified router with three antennas and can connect to both 2.4GHz and 5GHz networks in order to extend them both on wired and wireless interfaces. The product enclosure has arrived fully-sealed with a transparent plastic film:

The film can be easily removed in order to reveal a photo of the main product on the top area, along with a list of the main product features:

A short summary of technical specs is listed on both sides:

On the back though we will get to see a more in-depth explanation regarding what the product really does and depending on our needs, TP-LINK has also sorted out a chart to show differences between different models:

After removing the top packaging layer, we will end up seeing the extender along with its rest of the bundle, which do stay safe inside a custom cardboard mold:

As documentation, we have found inside a Declaration of Conformity leaflet, one Technical Support leaflet, a Product Positioning leaflet, one Quick Installation Guide but also one GNU General Public License Notice:

As mentioned in the documentation, the RE580D can sit both horizontally and vertically; however, the recommended position by the manufacturer is horizontal:

Steps for performing the installation are clearly detailed inside the manual:

After removing the range extender from the mold, we will get to see some more accessories on the bottom layer: the vertical dock, one LAN cable, three antennas and the power adapter: