All parts purchased online have a 30 day replacement warranty against defects. We accept no returns of parts or computer systems purchased online. Any defective item will be replaced within 30 days. Computer system warranties will be issued as stated at time of purchase (1-3 year). If you have to send an item back to us, the original shipping and handling charges are not refundable. Please mail your package in a prepaid, insured, traceable method to the address below: