5G Front-haul, Mid-haul, and Back-haul solutions are provided by Gearlink. 5G era has a big change in the network architecture, which obviously takes to new requirements. The demand for wireless transceivers and wireless optical modules will have substantial growth, mainly concentrated on 25g transceiver, 50g transceiver, 100g transceiver. New demands need the manufacturers to optimize the products in cost, function, power consumption, and so on. Gearlink fiber optic transceiver manufacturer supplies wide range of 25G, 50G, 100G products and has continued developing the ability to reach new and higher-end transceiver circuit and transceiver chip for 5G wireless markets.