Juniper Networks EX9200-12QS - expansion module - 100 Gigabit QSFP28 / 40 Gigabit QSFP+ x 12

The line cards in EX9200 switches combine a Packet Forwarding Engine and Ethernet interfaces in a single assembly. Line cards are field-replaceable units (FRUs) that you can install in the line card slots on the front of the switch chassis. Line cards are hot-insertable and hot-removable: you can remove and replace them without powering off the switch or disrupting switch functions.