Microsoft and AWS preview private Azure-to-AWS interconnect at up to 100 Gbps

On September 1, 2026, Microsoft unveiled a service for privately connecting Azure and AWS, built jointly with AWS. It pairs Azure Multicloud Interconnect with AWS Interconnect – multicloud and supports connections of up to 100 Gbps. The Register reports that the Azure side is in preview, with no general availability date or pricing announced, and that interested customers should contact their Microsoft or AWS account teams. AWS cited MACsec encryption, four-nines availability and click-to-scale provisioning, and its multicloud interconnect now also covers Google Cloud and Oracle Cloud Infrastructure.

Many mid-sized businesses already use both clouds, for example Microsoft 365 and Azure for identity and productivity, and AWS for applications. Linking them today usually means internet VPNs or private circuits arranged through a third party. A native, provider-managed link could simplify that design and improve performance and security for traffic between the two.

If you move meaningful data between Azure and AWS, ask your provider or advisor to map how it flows today and what it costs, including data transfer charges and any circuits or VPN appliances. Then compare that with the new option once pricing is published. Because the service is in preview, Microsoft says features, performance targets and timelines may change, so avoid relying on it for production until it is generally available.

This follows a similar AWS and Google Cloud arrangement announced in late 2025. Easier cross-cloud connections give buyers more flexibility to place each workload where it fits best.