I used two network card to transfer data, it turned out that when one was working at a speed of about 2MB/s,the other one had little speed. They just could not work at the same time at high speed like 2MB/s when only one card worked at a time. but when I tested the speed by using two flash drivers ((pen drives?) don't know how to say it in English correctly). There was no such limitation for flash drivers.I mean that two flash drivers could work at the same time at hight speed. who can help me explain this please?
PS.it is wireless network card that I used and each one connected to a different AP that worked in different channels.