IDS-509G-CSS10D-XT Industrial Managed Switch, 9 ports: 8 x 10/100/1000Base-T Base-T RJ-45 ports and 1 x 1000Base-BX, 1490nm TX / 1310nm RX single strand single mode port with simplex (BIDI) SC connector [ 10km/6.2 miles ]. -40 to 75C industrial extended operating temperature. PRO software feature set.