Huawei RRU3959 02311LFH WD5M21395901 is a Remote Radio Unit RRU designed for multi-mode operation in the 2100MHz frequency band. It supports two transmit and two receive antenna ports with a maximum output power of 60W per port. The Huawei RRU3959 02311LFH is capable of providing wireless coverage and capacity for various communication technologies, including 2G, 3G, and 4G/LTE networks. It is a part of Huawei's radio access network RAN solution and is typically used in cellular network deployments to enhance network performance and coverage.