what do you mean by 8 dios? digital I/O?
the reason i think i would like to change is because i am having a lot of difficulty writting the program for it in traditional daq, and find daqmx slightly easier.
if i was to aquire the USB 9211a, would i be able to convert the program that i have for the 4351 which is tradtional daq to daqmx? i have uploaded the file.