Digital Realty says construction has begun on KIX15, a planned 24 MW commercial data center at its KIX Campus in Ibaraki City, Osaka Prefecture. MC Digital Realty, a 50/50 joint venture between Digital Realty and Mitsubishi Corporation, is developing the facility and targets service commencement in Q4 2028. That date is a company projection, not a confirmed opening.
What is KIX15?
KIX15 is a planned data center for enterprise infrastructure—not a consumer AI product. Digital Realty describes it as the fifth data center at the KIX Campus. Its announced 24 MW figure refers to planned IT/server power capacity, rather than the capacity of MCDR’s entire Japan portfolio. Digital Realty’s October 7, 2026 announcement and MC Digital Realty’s Japanese announcement report the project details.
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Where is the facility, and what is planned for the site?
KIX15 is planned for the KIX Campus in Ibaraki City, Osaka Prefecture, in Japan’s Kansai region. MC Digital Realty’s local announcement specifies a seismic-isolated building with one basement level and three floors above ground, with a stated floor area of 17,672.49 m². The project is described as part of MCDR’s Kansai AI Infrastructure Co-Creation Project.
Who is building KIX15?
MC Digital Realty (MCDR) is the developer. It is a 50/50 joint venture between Digital Realty and Mitsubishi Corporation. Digital Realty says KIX15 will join PlatformDIGITAL, its global data-center platform.
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When is KIX15 expected to open?
MCDR and Digital Realty give Q4 2028 as the target for service commencement. The facility is under construction, so the date remains a forward-looking company target; the announcements do not establish that service will begin on a guaranteed date.
What capacity, cooling, and connectivity are announced?
Power capacity
The planned IT/server power capacity is 24 MW, according to the companies. This is a project specification, not an independently measured operating result.
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- Save valuable floor space: 12U wall mount server cabinet Dimensions: 24.25" H x21.65" W x17.72" D. MAXIMUM MOUNTING DEPTH is 14.2".
- Keep critical network equipment secure: glass door and side panels are lockable to prevent unauthorized access; Front door can be installed on either side of the front of the cabinet to satisfy your door swing orientation preference
- Easy equipment configuration: Fully adjustable mounting rails and numbered U positions, with square holes for easy equipment mounting with top and bottom punchout panels for easy cable access
- Durability: Made of high quality cold rolled steel holds up to 110lb (50kg) (Easy Assembly Required)
- PCI & HIPPA and EIA/ECA-310-E compliant
Cooling design
The companies describe a hybrid air-and-liquid cooling approach. It is a planned design feature; the announcements do not provide operating data demonstrating cooling performance.
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Digital Realty says the site will connect through its ServiceFabric platform and relationships with multiple network providers, with access to cloud and network connectivity. These are announced service and platform plans, not evidence of a particular customer connection or service-level outcome.
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What does the project mean for MCDR’s Japan portfolio?
MCDR expects that, when KIX15 is completed, its Japan portfolio will comprise 10 facilities with approximately 220 MW of aggregate IT capacity. The approximately 220 MW figure is a company projection for the wider portfolio after completion, not KIX15’s capacity; it has not been presented as an independently audited total.
Who is the facility intended to serve?
The announcement identifies hyperscalers, cloud service providers, and companies deploying AI infrastructure as intended customer groups. It does not disclose pricing, signed customer commitments, or when capacity will be available to lease, so the announcement alone does not establish whether a particular organization can reserve space.
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