Not power supply.  Please feel free to inquire if you have any questions about this item. I am happy to help provide you with any additional information, tech support or even to assist with a little research to help you determine if the item is right for you. After purchasing, if you have any issues please contact me directly, I will work to quickly find a suitable resolution. I value people over profits and strongly believe in business with a conscience. I aim to keep empathy, respect and understanding in the forefront throughout each part of the process.