Two 10GbE SFP+ ports service module for Cisco Catalyst 3560-X and 3750-X (spare)
Cisco C3KX-SM-10G=, Internal, Wired, Fiber, 10000 Mbit/s, Black, Silver, White
Cisco C3KX-SM-10G=. Internal. Connectivity technology: Wired, Interface: Fiber. Maximum data transfer rate: 10000 Mbit/s. Product color: Black, Silver, White