IDS-509F3-T2MD2-SD20-XT Industrial Managed Switch, 9 ports: 6 x 10/100/1000Base-T Base-T RJ-45 ports and 2 x 100Base-FX, 1310nm multimode port with duplex ST connector [ up to 5km/3.1 miles ] and 1 x 100Base-LX, 1310nm single mode port with duplex ST connector [20 km/ 12.4 miles ]. -40 to 75C Industrial extended operating temperature. PRO Software feature set.