Cisco - SFP+ transceiver module - 10 GigE - 10GBase-CWDM - LC/PC single-mode - up to 24.9 miles - 1590 nm - for P/N: C9300-NM-8X-RF/ C9500-NM-8X-RF/ N3K-C34180YC/ NC55-MPA-12T-S/ WS-C3850-48P