Summary: Do not buy this product. You can read the review and know that most of the time this doesn't work. Linksys doesn't provide support. If you want to return, the seller charges restocking fees and shipping charges. I called and the cust rep can't tell how much refund I will get back.
Summary: This adapter was a great solution for my older laptop, a Sony Vaio PCG-R505DL(purchased in 2002, and yes, it is still running)which did not come with any wireless capability. The adapter was inexpensive, a breeze to install, and not too difficult to configure.