How does this fasten to the wall?

Interestingly, this information is on the inside of the packaging that must be torn off the product before it can be read, instead of on the outside so that you can read about it and pick up the mounting hardware while you're at the store. They sell a hardware kit that comes with mounting hardware separately, it's about $6-$8 depending on the color and series of raceway you are using it for. Heading back to Lowe's now to get this.