The Finisar FTLC1121RDNL 100GBASE-LR4 is a high-speed optical module designed for long-wavelength applications up to 10km. With a compact form factor and made in Malaysia by the reputable brand Finisar, this unit offers reliable performance for LAN-WDM networks that require efficient data transmission. Ideal for use in computers and networking equipment, this 100GBASE-LR4 module provides a seamless solution for high-bandwidth connectivity in various settings.