Juniper Networks EX9200-6QS - expansion module - 40 Gigabit QSFP+ x 6

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 can be installed in the line card slots on the front of the switch chassis. The line cards are hot-insertable and hot-removable - you can remove and replace them without powering off the switch or disrupting switch functions.