I will recheck with my volt meter but i think the tx/rx output 5 volts. Idk if that matters any im just thinking if it outputs 5v and you touch it to its 5v supply would anything happen. Also i noticed that if i touch the tx/rx to ground the device dissapears from the pc and i have to plug it into another usb port in order for it to be recognized. Thanks for your help so far everyone.