Boost your Wi-Fi.
This 2.4GHz / 5.0GHz Ubiquity AC PRO access point will deliver wifi in your entire apartment.
It comes with an ethernet cable and the PoE injector. I do not have the power cord, but that can be bought for $4 on Amazon or for $2 in other shops (search for "Monoprice Power Cord - NEMA 5-15P to IEC 60320 C5, 18AWG, 10A/1250W, 3-Prong, Black, 6ft"). I just figured you might have a spare one or PoE at home and therefore did not want to order it uselessly.