Supermicro MBM-XEM-002+ Broadcom 10GbE Ethernet Switch with RJ45 for MicroBlade
20x 10/1Gbps downlinks (SuperBlade)
56x 10/1Gbps downlinks (MicroBlade)
Broadcom BCM56846 10GbE Low Latency Switch
SuperBlade 10GbE Switch Module: 20x 10/1Gbps downlinks (SuperBlade), 56x 10/1Gbps downlinks (MicroBlade), 2x 40G, 4x10G, and 1x 1G uplinks, 1 Console port, 1 USB port - Low Latency