I'm just going to give a plug to Other World Computing. I bought a 240GB SSD for my 2011 MBA 11" and it did not come with the required screwdrivers to install it. Even though their own YouTube installation video states clearly that the tools ARE included, the product page didn't specifically state that it wasn't included, and the link to buy such a part from the SSD product page was broken. After getting on Live Chat with OWC in which I explained the problems, they promptly informed me that they would make an exception and overnight the part to me free of charge. WAY TO GO OWC! That's a company that understands that customer loyalty is worth owning mistakes and making it right. I will be buying from them in the future and I recommend you do too.