Works for a non-mixed network

I bought this swtich hoping to use it with my gigabit connected computers along with my 100mbit connected computers. I checked ahead of time, making sure the description for the product said it could work in a mixed speed network. What they didnt mention, is that if used in a mixed speed network (100mbit and 1000mbit connections to it at the same time) it will run at the slowest connected speed. I found out by noticing it wasnt any faster than my previous 100mbit network. I emailed their tech support asking and they respondeded with
It will run at the slowest speed connected

So this means that if your router, computer, AP, or ANY ethernet device that runs at 100mbit is attached to it, it will make all 8 of its ports run at 100mbit, regarldess if all the other ports have 1000mbit connected devices.