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$36.85 
The TP-Link Omada ISM321B-20 V1 is a reliable and efficient SFP (mini-GBIC) transceiver module designed for seamless connectivity in demanding environments. This plug-in module operates effectively across a temperature range from -40°C to 85°C and supports a humidity range of 5 to 85% RH, ensuring stable performance in various conditions. With a data transfer rate of 1.25 Gbps and a maximum transfer distance of 20 km, it is suitable for Gigabit Ethernet applications, offering features such as Digital Diagnostics Monitoring (DDM) and bidirectional communication. Its hot-pluggable design allows for easy installation and maintenance without interruption, making it a versatile choice for network expansion and management.