RDMA is a network stack offload to the network adapter. It allows [[Server Message Block (SMB) Protocol|SMB]] storage traffic to bypass the operating system for processing. RDMA enables high-throughput, low-latency networking, using minimal host CPU resources. These host CPU resources can then be used to run additional VMs or containers. Not all network adapters from vendors support RDMA.^[[Host network requirements for Azure Stack HCI - Azure Stack HCI | Microsoft Learn](https://learn.microsoft.com/en-us/azure-stack/hci/concepts/host-network-requirements#rdma)]