M640
The M640 is a rugged embedded Gigabit Ethernet switch providing up to ten Ethernet ports, each of which can be factory configured as 1000Base-T or 1000Base-BX/KX. The 1000Base-BX/KX ports support both backplane applications and external SFP modules, while the 1000Base-T ports support 10/100/1000 Mbps operation.