TP-Link TL-SF1005D Network Switch 5x 10 / 100Mbit / s RJ45 ports [Amazon Frustration-Free Packaging] (Personal Computers)
Since I live in a student residence, where it is forbidden, wireless router to connect (specifies otherwise noted problems in the dorm network), it is exactly what I was looking for. Connecting is easy super, you have to just connect the AC adapter,