MUST READ BEFORE PURCHASE: The way to buy right power supply adapter is to correctly match output Voltage(V), Amps(A) & the most important is 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. AC power lead (for brick shaped adapters) may or may not be included if not already mentioned so ask seller to include free if required, before or immediately after purchase. 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 especially on non delivery issue select first option that I have question about my order & want to contact the seller, instead opening Amazon case against seller straightway without any communication. Things can go wrong but dont panic; customer satisfaction will always be our 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 at later stage. Cheap priced non branded generic/ fake version adapters do not last very long and often get overheated and die quickly. Thanks for your time reading the information.