I bought this refurbished adapter to replace an aging/worn charger for my asus q301la laptop, and this thing has been working perfectly and appears to be made of very high quality.The adapter doesn't have any visible signs of wear, and i have started to doubt that this adapter was ever used. The power supply came with a myriad of different computer adapters, all of which i've seen on a number of different laptop models. Adapter "p" fits my asus computer perfectly, and i frequently forget that this isn't the original adapter for my computer. I've only been using this power supply for a few days, but i use my computer quite heavily for work, and i will surely put this adapter through it's paces. The adapter feels like it's very high quality, and i'm feeling confident that it will stand up to the challenge.I will update this post as time goes on, in case i encounter any issues (big or small) with this adapter.