DAQ through which I can acquire a 12 bit digital waveform and digitally trigger it with an external clock source

[Srishti]

I need a DAQ through which I can acquire a 12 bit digital waveform and digitally trigger it with an external clock source. I had purchased USB 6351, but it did not fulfill my requirements. According to the X series user manual only Port 0 DIO lines can be used for desired operation. 

Is there any DAQ available through which I can trigger a 12 bit  digital signal from an external digital source ?

I am working on a project and would wish to get an urgent reply.

[John_P1]

If you were planning on using the USB-6351, the USB-6353 is almost exactly the same but with more inputs (24 vs 8 digital lines on port 0).  It might be overkill if all you need is 12 sampled DI lines though (e.g. the 6343 would save you $500 if you don't need the higher sample rate or analog specs of the 6353).

Best Regards,