Yealink 5 V 2 A Power Supply
5V, 2A AC power supply for the T29G, T46S, T48S, T52S, T54S, T54W, T55A, T56A, T57W, T58A and T58V.
Yealink Phones do not include power supplies. In most cases we provide a POE Switch which removes the requirements for a power supply. For cases where the POE switch is not used, the power supply is required.