devices for port mirroring

Hello, I have not used a routerboard device before and would like to buy one for a home network.

I can not seem to find documentation for what I am looking for. I am looking for a 10+ port switch that allows port mirroring.

What 10+ port switches support port mirroring? Thanks for the help.

http://wiki.mikrotik.com/wiki/Manual:Switch_Chip_Features

or buy mirror switch