Launch of Collaboration to Offer IOWN DCI Rack Solution Based on the IOWN Vision in Japan

Promoting next-generation data center infrastructure with optical technologies to address power, heat, and connectivity challenges in the AI era

May 11, 2026 ITOCHU Techno-Solutions Corporation
APRESIA Systems, Ltd.
Edgecore Networks Corporation / an Accton company

ITOCHU Techno-Solutions Corporation (headquartered in Minato-ku, Tokyo; President and CEO Tatsushi Shingu; hereinafter CTC), APRESIA Systems, Ltd. (headquartered in Chuo-ku, Tokyo; President Masahiko Suenaga; hereinafter APRESIA), and Edgecore Networks Corporation (headquartered in Hsinchu, Taiwan; President Mingshou Liu, hereinafter Edgecore) today announced that we have entered into a collaboration to provide an IOWN DCI*2 Rack Solution in Japan. The offering is based on the IOWN*1 technology promoted by NTT that addresses data center infrastructure challenges in the AI era. We will help accelerate the development of highly efficient next-generation data centers that address the power, heat, and latency issues inherent in conventional electrical-based interconnects for large-scale AI processing with our transformative solution.

With the widespread use of generative AI and related technologies, GPU servers are consuming more power and generating more heat, making increased power demand and higher heat density critical challenges for data centers. Moreover, large-scale AI processing requires massive data exchange among servers, further driving up power consumption while increasing communications latency and heat. Addressing these issues requires more than incremental extensions of conventional approaches, it requires a fundamental transformation of data center infrastructure.

The IOWN DCI Rack Solution is next-generation data center infrastructure that re-architects connections and transmissions conventionally dependent on electrical signals, enabling power-efficient, high-speed, and low-latency data transport using optical technologies. It also incorporates the concept of Watt-Bit Collaboration, which optimizes power (watts) and information (bits) in an integrated manner to improve energy efficiency across the data center.

At the core of the solution is Edgecore’s infrastructure solution Nexvec™, which enables flexible allocation and integration of resources required for AI workloads such as GPUs and memory across distributed servers and data center environments. This allows the servers, switches and communication elements required for AI processing to be connected efficiently using optical technologies. In addition, by adopting a data-centric design philosophy, the solution minimizes data movement between compute and storage, delivering both energy efficiency and the high processing performance required in the AI era.

The roles of each company in this collaboration are as follows.

CTC will provide end-to-end support for AI data centers, covering everything from upstream design with a holistic view of the entire facility to construction and operations, and promote optimal infrastructure development for the application of optical technologies. APRESIA will deliver specialized support for GPU network switches and software that enable low-latency, stable communications, as well as the optical layer for inter-data-center connectivity. Edgecore will supply the product portfolio and related components—such as servers and switches—that comprise the AI infrastructure.

Going forward, the three companies will consistently advance the real-world adoption of highly efficient AI infrastructure by integrating leading-edge technologies and surrounding solutions based on the IOWN Vision. Together, we aim to build next-generation infrastructure that supports Japan’s AI industry and contribute to the realization of a carbon-free society.

Illustrative Image of IOWN DCI Rack Solution

Illustrative Image of IOWN DCI Rack Solution

Roles of Each Company

CTC
  • Serve as the prime integrator, leading customer proposals and overall project management
  • Design and build the overall system, including application of IOWN DCI Rack and IOWN APN
  • Deliver value-added solutions including AI infrastructure construction and facilities solutions such as liquid cooling
APRESIA
  • Provide configuration and tuning support for switches and Network OS (NOS) used to build GPU networks
  • Provide (Level 2/3) vendor support for the above switches and NOS
  • Provide optical-layer support by engineers with deep expertise in optical wavelength technologies and GPU communications
Edgecore
  • Develop and provide equipment products that serve as IOWN-enabled data center infrastructure
  • Develop and commercialize highly efficient network and server equipment that can evolve alongside future photonics electronic convergence devices
  • Develop and support the OS and management software, and provide technical assistance for partners in Japan

We have received the following comments for this announcement:

NTT is working with partners, including Accton/Edgecore in Taiwan, to develop and provide an AI computing infrastructure that can flexibly leverage distributed computing resources using optical networks based on IOWN technologies, in line with the shift in AI infrastructure from large-scale training to inference processing. We welcome this collaboration announcement as an initiative that will help accelerate the early real-world adoption of IOWN, a next-generation communications infrastructure that ensures high capacity, low latency, and low power consumption.

Yoshitsugu Shimazu
Vice President, Head of Innovative Technology Office, Technology Planning
NTT, Inc.

  • *1 IOWN (Innovative Optical and Wireless Network) is a next-generation network vision that leverages a new communications infrastructure centered on optical technologies to achieve high speed, low latency, and low power consumption—capabilities that are difficult to realize with conventional electronic processing. CTC, APRESIA, and Accton are members of the IOWN GLOBAL FORUM™, which promotes “IOWN®.”
  • *2 DCI has multiple meanings, including Data Centric Infrastructure (a design philosophy that optimizes data placement, access, and processing), Data Center Interconnect (integrated control across distributed data centers), and Data Center Infrastructure (the foundational infrastructure that makes up a data center).
  • * Other product names and proper nouns mentioned herein are trademarks or registered trademarks of their respective companies.

Contact Information

ITOCHU Techno-Solutions Corporation, Corporate Communications Department

E-mail:press@ctc-g.co.jp

You can contact us via the web form Open link in new window

APRESIA Systems, Ltd.
Corporate Strategy Department

E-mail:prad@apresiasystems.co.jp

Accton/Edgecore Networks Corporation
Marketing Department

E-mail:ray_huang@accton.com

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