This is a broken/non-functional motherboard I pulled out of my laptop, an HP G7-2247us the board itself is a DA0R53MB6E1 Revision: E. It suffered from a mosfet failure, and I don't know what other issues it may have, as I never attempted to repair this motherboard (replacing the board entirely was easier as I wanted to get my laptop back up and running quickly). It is probably best used for parts at this point, at the very least the onboard battery might still have a charge or there may be some other component on here someone could use.As with basically all of my electronics sales this item is sold as-is and I offer no guarantees, no warranties, and will not take returns or give refunds on this item. It is that I don't back the product itself, because I know it has an issue relating to hardware failure. Also, I can't guarantee something won't happen to it in transit, or that the buyer or someone else (buyer's friends, computer repair shop technicians, etc) won't somehow damage it during testing or installation of components. I'm not a retailer or business, just an individual selling some unused things I have on hand, so it's not like I keep a large inventory on hand for returns or replacements. Once it leaves my possession I have no control over what can or will happen to it. I have had this happen before where someone bought a motherboard from me, then took the board to a PC shop to have it set up and the PC technicians there damaged the CPU and CPU socket during installation and caused a no-POST scenario. Payment due via PayPal within 48-hours of this sale's end. If you haven't paid me within a week and do not make any attempts to contact me I will open up a non-paying buyer case against you. I will ship this to the continental United States/lower 48 states (and maybe Canada, I've sold to there maybe twice without issue), and the shipping cost is calculated and includes the cost of insurance.Thanks for looking and good luck offerding.Check out my other items.