The Juniper Networks QFX10000-30C-M Expansion Module consists of thirty 28-Gbps QSFP+ Pluggable Solution (QSFP28) cages that support 40-Gigabit Ethernet or 100-Gigabit Ethernet optical transceivers. The QFX10000-30C ports automatically detect the type of transceiver installed and set the configuration to the appropriate speed. The line card can support 10-Gigabit Ethernet by channelizing the 40-Gigabit ports.