RB433AH with 3miniPCI traffic

I am very new of wireless, I dont know if my logic is right, please give me your opinion guys.

I installed RB433AH. wlan1 connected to a laptop (AP-bridge b/g), ether1 connected to a gigabit switch that have our server(server have gigabit LAN port) connected to that switch. I put wlan1 and ether1 into bridge-1. And when I download file from server, i got traffic on bridge-1 = 20mbps.

and than I put additional 2miniPCI, so I got wlan1,wlan2,wlan3 working as 1 AP, and wlan2 and wlan3 join the bridge-1. I prepare 2 other computer, each computer connect to wlan2 and wlan3. all 3 computer download file from server, different file at the same time. and I still got 20Mbps traffic on the bridge-1.

my logic, since have 3 miniPCI and each computer connect to different miniPCI, i should have 3x20MB traffic on bridge-1, when download file from server together.

is there something wrong?

Thanks for your time and attention

Jun.

if you trying to say word: TRUNK, than i think it’snot possible in these case. 1xminipci wireless on OWN ghz, another on other ghz etc.. they cannot work all in one Ghz, should not, exeption, when 1 card RX, another TX → nstream2.. but not with laptop as client side