WS-X6824-SFP-2TXL=

Cisco 24-Port 1 Gigabit SFP Fiber Ethernet Module with DFC4XL – Expansion module – 1GbE – 24 ports – for Catalyst 6503-E, 6504-E, 6506-E, 6506-E IDSM-2, 6509-E, 6509-E 10Gig, 6509-V-E, 6513-E