Topaz is the first-ever submarine optic fiber cable to connect Canada and Asia, and the first trans-Pacific fiber cable to land on the West Coast of Canada.

Topaz cable will land in

• Port Alberni, Vancouver, Canada,
• Shima (Mie prefecture), Japan
• Takahagi (Ibaraki Prefecture), Japan

In Port Alberni, Topaz cable will land at an existing cable landing station which was origionally the landing station for the legacy Commonwealth Pacific Cable System (COMPAC), a copper undersea cable linking Vancouver with Honolulu (United States), Sydney (Australia), and Auckland (New Zealand). The cable landing station has been upgraded to fit the needs of modern fiber optics and will house the eastern end of the Topaz cable.

The Topaz cable system consists of 16 fiber pairs, for a total capacity of 240 Tbps, featuring the support for Wavelength Selective Switch (WSS), an efficient and software-defined way to carve up the spectrum on an optical fiber pair for flexibility in routing and advanced resilience.

The Topaz cable system is delevoped by Google, to be ready for service in 2023.