Digital Realty Plans Additional $10 Billion Japan Data Center Investment

Digital Realty plans an additional $10 billion in Japanese data center investment over the next decade, a commitment intended to bring its capacity in the country close to four times its current level.

The investment will flow through MC Digital Realty, an equal joint venture between Digital Realty and Mitsubishi Corporation that launched in 2017. The planned spending is the company’s largest commitment to the Asian market to date. Its expansion is concentrated in Tokyo and Osaka.

Digital Realty currently operates eight sites in Japan with about 170 megawatts of live IT capacity. The measure reflects how much power the servers in a data center can draw, rather than the facility’s total power use.

KIX15, a project near Osaka, is a major part of the expansion. Construction began Oct. 7, 2026. The facility is designed for 24 MW, with operations planned for the fourth quarter of 2028. When it opens, MC Digital Realty’s portfolio is projected to include 10 facilities with about 220 MW of IT capacity.

KIX15 will combine air and liquid cooling for high-density artificial intelligence computing. Its intended customers include hyperscalers, which operate large-scale computing infrastructure, and cloud service providers.

Another Japan facility, NRT14, began operating in April 2026. It is among Japan’s early NVIDIA DGX-Ready data centers and supports 150 kilowatts per rack. The certification indicates that a site can host NVIDIA’s high-end AI computing systems.