2 of 3 people found the following review helpful
500mbps are falsely advertised,
This review is from: Devolo dLAN 500 Duo Adapter (Accessory)
These devices are falsely advertised as 500Mbps devices.
As they only have a 10/100Mbps ethernet port you will never get more than 100Mbps out of them.
As usual big numbers to fool the general public.