hi,
i have a Routerboard 230 with RB44 and i can see 6 ethernet port.
but when i put the wireless card i cannot see the RB44 and the wireless card.

so i cannot use the RB44 and the wireless card at the same time with RB230 ?

the slots are shared, you can use only one at a time.

You can use both devices in same time only in RB230r3