Cisco Nexus X9788TC-FX - Expansion module - Gigabit Ethernet / 10Gb Ethernet x 48 + 100 Gigabit QSFP28 x 4 - for P/N: N9K-C9508-FM-E-RF, N9K-C9508-FM-G, N9K-C9516-FM-E=, N9K-C9516-FM-E2, N9K-C9516-FM-E2=