The Chelsio Network Adapter is a quad-port, low profile, memory free, 10 Gigabit Ethernet Server Offload device with a PCI Express 3.0 host bus interface, optimized for networking, cloud computing, virtualization and other datacenter applications. It includes an integrated Traffic Manager for robust, flexible flow control, traffic management and QoS. For enhanced usage, this adapter integrates a 140-port high performance L2-L3 packet switch with integrated access control and flow control support, which allows switching traffic from any of the ports or host queues or physical or virtual functions to each other. The switch can further provide multicast and replication functions in the ingress or egress direction.