Btw, it is devolo in their own FAQv who say that phasecouplers are not needed due to MIMO :-) https://www.devolo.co.uk/service/faq/dlan-1200-powerline/

I also looked at the Devolo DINrail. What I am not sure about: Does the speed really get better because your router was plugged into the DINrail? Or did it get better on a 1200 PLC network because...

Model : Hardware Version : Firmware Version : ISP : Hello and good evening, I am using the TL-WPA8630P KIT AV1200 with 2x2 MIMO standard. In fact, in my house from the VDSL router in the basement to...