This 10/100/1000M Gigabit Ethernet media converter employs advanced switching technology and facilitates the conversion of 10Base-T/100Base-TX/1000Base-T and 1000Base-SX/LX fiber optic signals. This product complies with the following IEEE standards: 802.3, 802.3u , 802.3z , and 802.3ab . This ensures wider compatibility. It can extend the network transmission distance of copper cable from 100 meters to 40 kilometers, which perfectly meets the demand for long-distance fiber optic transmission.