I Bought 3 computers in a single purchase from this seller Techexchangee.com and all three came defective. The first one, came with a huge scratch on the top, although they were all described as "in excellent condition". When starting the second one, the keyboard was not working and when starting the third one, the screen brightness was not adjusting and set as low. To return, the label was not pre-paid, which is absurd once all items came defective. I am contacting the seller to send a paid label, which is giving me hard work.