100G QSFP28 LR4 adopts integrated designed COB packaging, which has the characteristics of high coupling efficiency and low power consumption. Comply with IEEE 802.3BA and QSFP28 MSA protocols. This 100G LR4 can be compatible with most of the mainstream network device vendors such as Cisco, Arista, Juniper, HW, H3C, Ciena, etc., and can also be customized according to customer requirements. Widely used in the data center, school and enterprise networks, etc.