Siemens has successfully developed and tested a new cost-efficient product for better subsea Ethernet communication. The Advanced Converter & Switch (ACS) is making it possible to communicate at higher data rates and over longer lengths, then with the current electrical distribution technology. The ACS increases precision and effectiveness of subsea communication. This transparent communication solution can be used for connecting to existing subsea fields, for field extensions or for new developments. It is a simple and cost-effective solution for both brownfield and greenfield applications of subsea Ethernet.