Abstract: A portable electronic printing system including power supply assembly is disclosed. The printing system includes a printer comprising a printer housing having first and second ends, a handle disposed at the first end of the housing for allowing a user to tote the portable electronic printing system, and a power supply foot disposed at the second end of the housing. The power supply foot includes a power supply circuit for supplying power received from an external power source to the printing system. The power supply assembly includes a sidewall and a bracket for supporting a first electronic device and for sinking heat generated by the first electronic device away from the first electronic device. The bracket is coupled to the sidewall such that heat received by the bracket from the first electronic device is transferred to the sidewall. A second electronic device is mounted to the bracket such that the bracket absorbs vibrational energy applied to the second electronic device.