3Com SuperStack II Switch 1000BASE-SX Gigabit SX Plug-in Module 3C16975
In good condition and full working order - TESTED
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The 3C16975 3Com SuperStack II Switch Gigabit Ethernet modules support high-performance, fault-tolerant interwork-group and workgroup-to-backbone connections. The easy-to-install modules provide full-duplex Gigabit Ethernet up to 2 Gbps throughput, eliminating network bottlenecks. They support both 802.1D spanning tree and resilient links.