Colt Data Center Services (Colt DCS), a global leader in hyperscale and enterprise data center solutions, has launched its new hyperscale data center, Inzai 4, in Tokyo, Japan. This project—developed under a joint venture between Fidelity Investments and Mitsui & Co., Ltd.—underscores Colt DCS’s commitment to meeting growing demands in data center capacity and public cloud services across Japan and the Asia Pacific region.

Project Overview

• New Launch: Inzai 4 is the latest hyperscale data center in Tokyo, marking Colt DCS’s continued expansion.
• Joint Venture: Developed in partnership with Fidelity Investments and Mitsui & Co., Ltd.
• Operational Capacity: The first phase is complete with 4.8MW now operational; when fully built, the site will deliver 20MW.
• Total Capacity Impact: This development increases Colt DCS’s total capacity at Inzai to 70MW.

Highlights

• Market Demand:
  
  

  • The facility is fully pre-let, highlighting strong market demand for Colt DCS’s solutions.
  • Reinforces Colt DCS’s status as a leading global data center partner with a flexible footprint.
    
    

• Sustainable Development:
  
  

  • Developed in line with Colt DCS’s Global Reference Design (GRD) guidelines.
  • Incorporates low embodied carbon principles, including:
    • Reduced water wastage during cooling processes.
    • Installation of low Global Warming Potential (GWP) chillers.
    • Construction with minimal use of steel and concrete.
      
      

• Regional Significance:
  
  

  • Colt DCS has a long-standing presence in the Inzai region, launching its first hyperscale data center in 2011.
  • The region’s stable bedrock, dense fibre connectivity, efficient rail links, proximity to Tokyo, and supportive local government make it a prime location for data center expansion.
  • Plans for Inzai 5 are already underway, emphasizing ongoing investment in the region.
    
    

• Leadership Perspective:
  
  

  • Niclas Sanfridsson, CEO of Colt DCS, highlighted that the growth of digital services is driving the demand for hyperscale data centers in Japan.
  • Inzai 4 demonstrates Colt DCS’s commitment to supporting the digital economy and contributing to local community growth.

Colt DCS’s launch of Inzai 4 represents a significant milestone in expanding data center capacity in Tokyo. By combining operational excellence with sustainable construction practices and a strategic regional presence, the project reinforces Colt DCS’s role as a trusted partner in the digital transformation journey. The continued investment in the Inzai region, along with future plans for additional facilities, underscores Colt DCS’s dedication to meeting the evolving needs of the digital economy.