NI USB-6251 Screw Terminal

description: Legacy USB DAQ Device NI recommends the NI USB-6351 X Series DAQ device for all new applications.. 16 analog inputs (16-bit), 1.25 MS/s single-channel (1 MS/s aggregate). 2 analog outputs (16-bit, 2.8 MS/s); 24 digital I/O (8 clocked); 32-bit counters..