Rent a ATEN VS184 4-Poort HDM..., from €7.50 from Bayram in Amsterdam
Amazon.com: FitPow AC/DC Adapter for ATEN VS184 4-Port HDMI Video Splitter 5V DC Power Supply Cord Cable PS Charger Input: 100-240 VAC 50/60Hz Worldwide Voltage Use Mains PSU : Electronics