I am looking for a switch to manage my home network. Ideally, I want a gigabit switch that can handle 100Mbit devices and gigabit devices simultaneously and not sacrifice my gigabit speed. Does such a switch exist? If so, where can I buy it?

I ask because I am not a tech guru; the way I understand it is, a switch will default to the speed of its slowest attached device.

I don't know if they make the type of switch I want but I am hoping someone out there can clue me in.

If the switch doesn't exits, then please tell me how to run gigabit and 100Mbit devices on the same network and not loose the gigabit speed.