The Cisco 10GBASE X2 module offers customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications.

Hot-swappable input/output device plugs into an Ethernet X2 port of a Cisco switch or router to link the port with the network.
Brand
CISCO
Model
X2-10GB-LR=

Spec
Standards
IEEE 802.3ae
Wavelength
1310nm
Max Distance
10km