TP-Link TL-SM321B Network Transceiver Module Fiber Optic 1250 Mbit/s SFP\n\nTP-LINK\u00B4s TL-SM321B adopts the latest standard 1000Base-BX, transmission over a single strand of fiber, with one different wavelength going in each direction. You can extend the network distance up to 10Km(6.2 miles) with TP-LINK\u00B4s Routers, Switches, Media Converters to provide high speed and stability.\n\n Specs\n\nPerformance\n\nSFP transceiver type\n\nFiber optic\n\nMaximum data transfer rate\n\nThe maximum speed with which data can be transmitted from one device to another.\n 50 Mbit/s\n\nInterface type\n\nSFP\n\nSingle-mode fiber (SMF) supported\n\nMulti-mode fiber (MMF) supported\n\nFiber optic connector\n\nThis terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so light can pass. Better connectors lose very little light due to reflection or misalignment of the fibers. In all ;