Provides a short-haul fiber interface. Single MT-RJ Port Gigabit Ethernet Connection. Scale the performance of your Ethernet/Fast Ethernet network by adding this module to the 3Com SuperStack 3 Switch 4400 10/100 managed switch. This module provides a resilient, short-haul, high-performance inter-workgroup or workgroup-to-backbone Gigabit Ethernet connection. Features: Provides a short-haul fiber interface. Support for 802.3z full-duplex Gigabit Ethernet delivers up to 2 Gbps throughput. Provides a resilient link backbone to improve overall fault-tolerance. Inserts easily into the expansion slot behind the switch. Standards-based 802.1p, 802.1Q, and multicast filtering support multimedia applications.