https://www.ebay.com/sch/i.html?_nkw=Addon+Cisco+X2+10Gb+Sr+Compatible+10Gbase+Sr+X2+Transceiver+Mmf+850Nm+300M+Sc+Dom+&_sacat=0&_dmd=2

Addon Cisco X2-10Gb-Sr Compatible 10Gbase-Sr X2 Transceiver (Mmf, 850Nm, 300M, Sc, Dom)

Regular price
$366.00
Sale price
$261.00

X2 transceiver module - 10 Gigabit Ethernet - 10GBase-SR - 850 nm - for Cisco 8; Catalyst 3560E 3750E 4500 4948 10; ME 4924; Supervisor Engine II-Plus-10