BLACK BOX Standard Media Converter Switch do more than just adapt from one cable type to another. This is true Ethernet switch and behave like switches within your Ethernet network. This means you can connect them together indefinitely without worrying about inter-repeater links. Each Media Converter Switch features non-blocking switching architecture with a 2K MAC address table. The 128K buffer memory makes it easy to connect both 10- and 100-Mbps devices to your 10-Mbps fiber link.