C2G Cisco GLC-T Compatible 1000Base-T Copper SFP (mini-GBIC) Transceiver Module - 5 Pack - SFP (mini-GBIC) transceiver module (equivalent to: Cisco GLC-T) - Ethernet, Fast Ethernet, Gigabit Ethernet - 10Base-T, 100Base-TX, 1000Base-T - RJ-45 - up to 328 ft (pack of 5) - for Cisco 5508, Catalyst 2970G, 3560, 3560E, 3560G, 3560X