I am also interested to see if this work, please update us.
Mean time, I order this at amazon. Should work it has mirroring ports. I will get it on Friday, will update here if it works, 5-port.
NETGEAR 8-Port Gigabit Ethernet Smart Managed Plus Switch (GS108Ev3)
NETGEAR 5-Port Gigabit Smart Managed Plus Switch (GS305E)