The Taiwan-Philippines-US (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 trunk and 20 fiber pairs on its branches to Taiwan and the Philippine, with an initial  design capacity of approximately 13 Tbps per fiber pair, for a total system capacity of up to 260 Tbps.

The TPU cable system is supplied 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 multi-core fiber techonology is deployed only on its branches to Taiwan and the Philippine.

The TPU cable system is expected to be ready for service in 2026. 

In April 2024, Google announced to extend the TPU cable system with a branching unit connecting the Commonwealth of the Northern Mariana Islands (CNMI),  an unincorporated territory and commonwealth of the United States consisting of 14 islands in the northwestern Pacific Ocean. Google also announced to build the Proa subsea cable connecting the CNMI, Guam and Japan.