If the product is not what you ordered for or the product is broken/damaged while carrying or the product does not match with the description, then you can return that product instantly. Please read our Terms and Conditions first(Trak Order). We accept returns for any unaffected development board, IC, tool, and/or cable within 3 calendar days from the date of delivery. After such time, all sales are considered as final. 'Unaffected' means the device was not powered up, programmed, or somehow changed. We cannot accept returns on purchased items that had electrical power applied to them, or programmed, changed, or affected in any way.