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CoreSite Chicago Adds 400G AWS Direct Connect for AI


CoreSite Chicago Adds 400G AWS Direct Connect for AI
  • by: Source Logo
  • |
  • January 16, 2026

CoreSite has launched native 400 Gbps AWS Direct Connect at its Chicago data center campus, providing ultra-high bandwidth and low-latency connectivity to AWS at substantially lower costs. This enhancement supports performance-intensive workloads, including enterprise applications, large-scale AI training, inference, and agentic automation.

Quick Intel

  • CoreSite Chicago campus now offers native 400G AWS Direct Connect for high-bandwidth, low-latency access to AWS.
  • Ideal for data-intensive workloads such as AI applications, GPU-optimized neocloud providers, real-time threat analysis, and latency-sensitive financial trading.
  • Customers can achieve up to 70% savings on data replication and eliminate egress costs for certain local AWS zone restores through direct interconnection.
  • CoreSite now supports 400G AWS Direct Connect at three campuses: Chicago, Illinois; Santa Clara, California; and Reston, Virginia.
  • The Chicago campus features dense fiber access and high-density colocation to accelerate hybrid IT modernization and AI operationalization at scale.
  • Early adopters include a leading cybersecurity provider using 400G for accelerated real-time threat analysis with large data volumes.

CoreSite’s Chicago data center campus delivers enhanced connectivity options tailored to the demands of the growing AI economy and data-intensive industries. Native 400G AWS Direct Connect enables customers to build secure, high-performance data pipelines with seamless integration between on-premises infrastructure, public cloud, and specialized AI environments.

Benefits for High-Performance Workloads

The 400G connectivity provides consistent low latency and massive bandwidth, critical for processing large datasets in real time. A prominent cybersecurity provider is already utilizing this capability to handle voluminous data streams and speed up threat detection and analysis. Financial services organizations are exploring 400G to meet stringent requirements for quantitative research and high-frequency trading, where every millisecond counts.

Interoperability and Cost Efficiency

By offering direct interconnection, CoreSite facilitates greater interoperability among enterprises, AI applications, neocloud providers, and public clouds like AWS. This approach supports hybrid IT strategies and large-scale AI deployments while delivering significant cost advantages, including reduced data replication expenses and avoidance of egress fees in supported scenarios.

“The AI economy developing within CoreSite’s data centers demands a high-level of interoperability between enterprises, AI applications, neoclouds and public cloud providers,” said Juan Font, President and CEO of CoreSite and SVP of American Tower. “Enabling native 400G AWS Direct Connect at CoreSite’s Chicago campus gives our customers the unique ability to establish low-latency, high-bandwidth data pipelines that deliver consistent performance, enhanced security and seamless integration across their digital environments.”

With this addition, CoreSite expands its footprint for ultra-high-speed AWS connectivity to three key markets, strengthening its position as a platform for resilient, scalable digital ecosystems that power critical workloads such as AI and high-density computing.

About CoreSite

CoreSite, an American Tower company (NYSE: AMT), is a leading interconnection data center platform that empowers businesses to future-proof their digital transformation initiatives. For more than 20 years, CoreSite’s purpose-built, highly interconnected data center campuses and team of experts have delivered the cloud-enabled, resilient and flexible digital ecosystems required for customers to quickly scale and interoperate their businesses to support the increasing demands of critical workloads, like AI and high-density applications.

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