I installed this product due to insufficient WIFI connection for my TV, and HD to Apple TV. I just had to plug in and connect the two CPL with immediate operation, and perfect recognition devices. At what speed, I do not know exactly (no test) but certainly enough for my applications including HD video and HD music flac format and other lossless (Itunes). So very happy. I have not tried to CPL 500 cheaper so I do not know if I spent too much but in any case this model is clearly effective. Also note that I use the three taken triple Ethernet LAN carefree case. As for me, I thus provides a clearly positive testimony.