The TPU cable system is a trans-pacific fiber-optic submarine cable system connecting the United States with Taiwan and the Philippines, with a cable length of approximately 13470 kilometers.

The TPU cable system is privately owned by Google through its various subsidiaries:

• GU Holdings Inc. owns 100% of the voting and economic interest of the Portion in U.S. Territory
• Google Singapore Pte. Ltd. owns 100% of the voting and economic interest of the portion in International Waters and the Portion in Philippines Territory
• Google Taiwan Limited owns 100% of the voting and economic interest of the Portion in Taiwan Territory

The TPU cable system lands at

• Eureka CLS, California, USA. The Eureka CLS is owned by EdgeConnex Arcata Holdings, LLC (EdgeConnex)
• Tanguisson CLS, Guam, USA. The Tanguisson CLS is owned by AT&T.
• Dawu CLS, Taiwan. The Dawu CLS is newly built and owned by Chunghwa Telecom (CHT).
• Claveria CLS, Philippines. The Claveria CLS is newly built and owned by Innove Communications, Inc. (Innove), a subsidiary of Globe Group. 

The TPU cable system features 16 fiber pairs on its trans-pacific routes, with a total design capacity of approximately 13 Tbps per fiber pair, for a total system capacity of approximately 260 Tbps.

The TPU cable system is provided by NEC, using optical fiber switching technology in the branching units, also demonstrating the first commercial use of multi-core fiber in a subsea cable system.

The TPU cable system is expected to be ready for service in 2025.