Complies with IEEE 802.3ab and IEEE 802.3z FX port supports hot-swappable Extends fiber distance up to 0.55km for multi-mode fiber and 10km for single-mode fiber The MC220L is a media converter designed to convert 1000BASE-FX fiber to 1000Base-T copper media or vice versa. Designed under IEEE802.3ab 1000Base-T and IEEE802.3z 1000Base-FX standards, the MC220L is designed for use with multi-mode/single-mode fiber cable utilizing the SC-Type connector. The MC220L supports shortwave (SX) laser specification at a full wire speed forwarding rate. It works at 850nm on both transmitting and receiving data when adopting multi-mode fiber and 1310nm on both transmitting and receiving data when adopting single-mode. Other features of this module include the ability to be used as a stand alone device (no chassis required) or with TP-LINKЎЇs 19ЎЇsystem chassis, Auto MDI/MDI-X for TX port, and front panel status LEDs. The MC220L will transmit at extended fiber optic distances utilizing multi-mode fiber up to 0.55 kilometers and 10 kilometers when utilizing single-mode fiber.