The Bay to Bay Express Cable System (BtoBE) is a 16,000-kilometer trans-pacific optical fiber submarine cable system,  will enhance and contribute to the much-needed expansion of communications networks between the Guangdong-Hong Kong-Macao Bay Area, San Francisco Bay Area and Singapore.

The BtoBE consortium composes of China Mobile International, Facebook and Amazon Web Services.

The BtoBE cable system is supplied by NEC and is expected to be completed by the fourth quarter of 2020.