This device fully complies with IEEE802.3u standard, featuring one single shielded RJ-45 100BASE-TX port and one fiber port using SC connectors. It supports conversion of signals from Fast Ethernet 100BASE-TX cabling to fiber optic cabling. Full/half duplex is supported and auto-detected. Supported transmission distances are up to 100 m for 100BASE-TX, and 2 km for fiber-optics.An AC power adapter is required for DC power conversion and input.