The EtherWAN Hardened Gigabit SFP Module is a high-quality networking component designed for use with switches and hubs. This module features a single mode fiber optic connection with a distance of 10 kilometers, making it ideal for long-distance network connections. The duplex LC port allows for efficient data transmission, while the DDM feature ensures diagnostic monitoring capabilities for added reliability. With the EtherWAN brand known for producing durable and reliable networking equipment, this SFP module is a solid choice for enhancing your enterprise network setup.