ORDER HELPLINE\n\nNot sure what you are looking for?\nEmail us for friendly advice:\nContact Us\n\nMenu\n\n--Power Supplies\n\n--Storage\n\n--RAM Memory\n\n--CPU Cooling\n\n--PC Cooling\n\n--Peripherals\n\n--Power Cables\n\n--PC Cases\n\n--Graphics Cards\n\n--Processors\n\n--Motherboards\n\n--Monitors\n\n--View All Items\n\n--About Us\n\n--Contact Us\n\n--Feedback\n\n\u25CF\n\u25CF\n\u25CF\n\nTP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module | PCBoost\n\nTP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module\nExtend your network reach with the TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module. This advanced fiber optic transceiver utilizes WDM technology to transmit data over a single fiber strand up to 20km. Additionally, the module operates at 1310nm TX and 1550nm RX wavelengths for cost-effective long-distance connectivity. Furthermore, this professional-grade SFP module provides reliable gigabit performance for enterprise networks, data centers, and telecb