MUST READ BEFORE PURCHASE: The way to buy right power supply adapter is to correctly match output Voltage(V), Amps(A) & connector size/type. Exactly same model number power adapter can have different size dc connector so always check pin size first or contact the seller for confirmation. Seller most likely will ask for additional information after your purchase so kindly keep checking your emails & reply immediately after your purchase even if your order has been marked as dispatched. 30 Days return/exchange will be acceptable in almost any situation however shipping fee will be non refundable for outside UK customers only. If any kind of problem or inquiry specially non delivery issue select first option that I have question about my order & want to contact the seller, instead opening Amazon case against seller without any communication. Things can go wrong but dont panic; customer satisfaction will always be top rated sellers first priority. A hard copy of the Invoice will be included in your package. Make sure your shipping address is 100% correct or updated before placing any new Amazon order otherwise the fee already spent on postage will be non refundable. Finally always buy genuine quality branded adapters to avoid any inconvenience or displeasure later instead buying cheap non branded generic replacement models or fake versions which look same do not last very long and could be safety hazard too. Thanks for your time reading the information.