Digilent MCC USB-234 Data Acquisition, 4 Channel(s), USB, 100ksps, 16 bits

This Digilent product features 8 SE and 4 different analog inputs, 16 bit resolution, two 16 bit analog outputs, eight digital Input and Output, and one 32-bit counter.

8 SE and 4 different analog inputs
16-bit resolution
USB-231 has a 50 kS/s sample rate
USB-234 has a 100 kS/s sample rate
Two 16-bit analog outputs
Eight digital Input and Outputs
One counter input
No external power required