I bought this a year ago and barely use it.  When I say I barely use it, I mean I use it for one program and one program only for demos of my products.  I’ve used this maybe ten times in a year and the power cord works, but the pc does not take a charge.  When I plug my charging cord in, the led turns off and it doesn’t charge.  On top of this, the “coating” they put on it started to shred off of it.  Guess I’m out $300, and this will be the last time I buy a refurbished unit....no matter how little I’ll use it.  AGAIN, DO NOT BUY FROM 6AVE, THEY WILL NOT WORK WITH YOU AT ALL TO HELP, except to tell you to contact the MFG.