Azure ExpressRoute can be used to create private connections between Azure datacenters and infrastructure on your premises or in a colocation environment. ExpressRoute connections don’t go over the public internet, and they offer more reliability, faster speeds, and lower latencies than typical internet connections.
Using ExpressRoute connections to transfer data between on-premises systems and Azure can give you significant cost benefits.
Furthermore, ExpressRoute gives you a fast and reliable connection to Azure with bandwidths up to 100 Gbps, which makes it an excellent and cost-effective option for scenarios like periodic data migration, replication for business continuity, disaster recovery, and other high-availability strategies.
You want to become an expert in ExpressRoute? You can start learning all about itusing this interactive mindmap (or cheatsheet) that I’m sharing with you:
https://freddyayala.github.io/AZCheatSheet/ExpressRoute.html