Broadcom BCM56850A2KFSBG is a StrataXGS Trident II Ethernet switch chip designed for high-density data-center networks, integrating the switch fabric and forwarding logic in a single device for ToR and aggregation deployments. It supports flexible 10GbE and 40GbE configurations, with HiGig2 interconnect for scalable multi-chassis fabrics. A BLG-packaged variant of the BCM56850 family, BCM56850A2KFSBLG, is listed by distributors as a 32×40GbE multilayer switch, highlighting its high-port-density capability. Broadcom lifecycle notes show the BCM56850 family reached last-time-buy on June 28, 2019 and last-time-ship on December 28, 2019, with BCM56850A2KFSBLG listed as the replacement part.
