Cisco SFP+ transceiver module - 10 Gigabit Ethernet - 10GBase-ER - LC/PC single mode - up to 24.9 miles - 1550 nm - for P/N: A9K-16T/8-B= WS-C4948E-F WS-X45-SUP7L-E WS-X45-SUP7L-E/2 (SFP-10G-ER=)
