Cisco WS-X6848-TX-2T 48-port Copper Gigabit Ethernet with integrated DFC4 Module

WS-X6848-TX-2T : 48-port Copper Gigabit Ethernet Module with DFC4. Cisco WS-X6848-TX-2T. 48-port Copper Gigabit Ethernet Module with integrated DFC4. - Chassis/slot support: Can occupy any slot in Cisco Catalyst 6503E, 6504E, 6506E, 6509E, and 6509-V-E.

eBay