The Mikrotik S-31DLC20D is a multimode SFP fiber module designed to provide high-quality, reliable connections in optical networks, ideal for those who need stable data links in professional environments. This fiber optic transceiver features an SFP interface with an LC type connector, allowing easy integration into compatible devices and facilitating network infrastructure expansion or upgrades. It operates at a wavelength of 1310 nm, ensuring efficient transmission and optimal coverage of up to 20 km, making it suitable for metropolitan area or enterprise campus communications requiring intermediate range without losing speed. With a data transfer rate of up to 1250 Mbit/s, this module supports fast, stable data flows, helping to minimize latency and communication interruptions. It is fully compatible with RouterOS, Mikrotik’s operating system, offering advanced network control and flexibility. Although it includes USB connections for configuration and maintenance, its true value lies in the multimode SFP connectivity that optimizes existing infrastructure without compromising performance. In short, the Mikrotik S-31DLC20D multimode fiber optic SFP transceiver module is a versatile and efficient solution for professionals and businesses requiring optimal connectivity in multimode fiber networks, combining range, speed, and compatibility with current technologies.