This part is a genuine part direct from Acer so you can be sure you are receiving the highest quality product available. E5-523, E5-523G, E5-553, E5-553G, E5-575, E5-575G, E5-575T, E5-575TG, E5-576, E5-576G, F5-522, F5-573, F5-573G, F5-573T, K50-20 We only recommend purchasing items from us based on part number and photos. Ordering a part based on device model number may result in an incorrect item as the same machines are often manufactured to different specifications. Please ensure you know exactly what part you require. If you are unsure please write to us via eBay and include your machine serial and model number in the message. We want you to be happy with your purchase. If for any reason you would like to return you have 7 days to do so. The buyer is responsible for return postage co