
As artificial intelligence, cloud computing, and data-intensive workloads continue to reshape enterprise IT strategies, network performance has become a critical differentiator. To meet growing demand for ultra-high bandwidth, low latency, and secure cloud connectivity, CoreSite has announced the availability of native 400 Gbps (400G) AWS Direct Connect at its Chicago data center campus—marking a major advancement for enterprises and AI-driven organizations operating at scale.
This launch positions CoreSite’s Chicago campus as a premier hub for high-performance cloud connectivity, supporting everything from enterprise digital transformation to large-scale AI training and real-time analytics.
Meeting the Demands of AI and Data-Intensive Workloads
Modern AI applications, GPU-optimized neocloud platforms, and performance-sensitive enterprise workloads require far more than traditional connectivity options. They demand consistent throughput, minimal latency, and seamless integration with public cloud ecosystems.
CoreSite’s native 400G AWS Direct Connect addresses these needs by enabling direct, private network connections to Amazon Web Services at unprecedented speeds. This capability is particularly valuable for organizations running AI model training, inference pipelines, agentic automation, and other compute-heavy workloads where network bottlenecks can directly impact outcomes.
Customers across data-intensive industries are already benefiting from this enhanced connectivity. One leading cybersecurity provider is leveraging 400G AWS Direct Connect to process massive volumes of data and accelerate real-time threat analysis. Meanwhile, financial services firms are evaluating 400G connectivity to support latency-sensitive trading operations and advanced quantitative research.
Enabling the AI Economy Through Interconnection
The expansion reflects a broader shift toward interconnected digital ecosystems, where enterprises, AI applications, neocloud providers, and hyperscale cloud platforms must operate in close coordination.
According to CoreSite leadership, the AI economy developing within its data centers depends on deep interoperability across these environments. By offering native 400G AWS Direct Connect at the Chicago campus, CoreSite enables customers to establish low-latency, high-bandwidth data pipelines that support consistent performance, enhanced security, and seamless hybrid and multi-cloud integration.
This level of direct interconnection is increasingly essential as organizations modernize hybrid IT infrastructures and operationalize AI at scale.
Cost Efficiency and Hybrid IT Modernization
Beyond performance gains, 400G AWS Direct Connect delivers meaningful cost advantages. By using direct interconnection instead of public internet-based connectivity, customers can achieve data replication savings of up to 70%. Additionally, certain data egress costs can be eliminated when restoring data from local cloud availability zones.
CoreSite’s Chicago data center campus further supports these efficiencies through dense fiber access and high-density colocation capacity. Together, these capabilities help enterprises accelerate cloud adoption, streamline data movement, and reduce the operational complexity associated with managing distributed IT environments.
For organizations balancing on-premises infrastructure with cloud-native and AI workloads, this combination of speed, scalability, and cost control is a compelling value proposition.

Expanding a Nationwide 400G Cloud Connectivity Footprint
With the addition of Chicago, CoreSite now offers native 400G AWS Direct Connect at three strategic U.S. data center campuses: Chicago, Illinois; Santa Clara, California; and Reston, Virginia. This growing footprint underscores CoreSite’s commitment to delivering next-generation cloud connectivity solutions in key enterprise and technology markets.
As demand for high-performance cloud and AI infrastructure continues to accelerate, access to ultra-high-bandwidth interconnection will play a defining role in enterprise competitiveness.
Power Your Cloud and AI Strategy with CoreSite
Whether you are scaling AI workloads, modernizing hybrid IT, or optimizing cloud performance, CoreSite’s native 400G AWS Direct Connect provides the speed, reliability, and efficiency required to operate at the forefront of the digital economy.
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. For more information, visit CoreSite.com and follow CoreSite on our Connect[ED] blog, LinkedIn and YouTube channels.



