Asslam o alaikum
mry pass iphone 4 hai js me usb 2.0 hai.r mery system me b 2.0usb port hai par jb me apny iphone ko cable k 7 connect krta hun to wo msg krta hai k ap n 2.0 s connect nai kia is lye ap ki trnsfr speed kam ho g.is ka kya hall hai?me har port me laga k chk kia hai par ye h msg show hota hai.