The FS QSFP28-LR4-100G Optical Transceiver is a high-quality unit designed for 100G QSFP connections at a wavelength of 1310nm with a maximum data rate of 100 Gbps. Manufactured by FS in China, this optical transceiver module is specifically designed for enterprise networking and server applications. With a single module included in the package, this product provides reliable and efficient data transmission over a distance of up to 10km, making it a valuable addition to any networking setup requiring high-speed connectivity.