ThinkStation Broadcom BCM5720-2P Dual-port Gigabit Ethernet Adapter is a dual-port 10/100/1000 Mb/s x1 PCI Express (PCIe) Ethernet adapter that supports offload technologies including Large Send, TCP segmentation, and TCP/UDP/IP checksum, and receive-side scaling (RSS) that deliver optimal network throughput, lower host processor utilization and as a result improve system overall performance.ThinkStation Broadcom BCM5720-2P Dual-port Gigabit Ethernet Adapter is a dual-port 10/100/1000 Mb/s x1 PCI Express (PCIe) Ethernet adapter that supports offload technologies including Large Send, TCP segmentation, and TCP/UDP/IP checksum, and receive-side scaling (RSS) that deliver optimal network throughput, lower host processor utilization and as a result improve system overall performance.