National Instruments USB-6251 data acquisition module, mass-terminated version. Tested, fully functional, and in excellent physical condition. Power supply not included.

AI Channels              16 SE / 8 DI
Sample Rate             1.25 MS/s single channel, 1 MS/s aggregate
Resolution                 16 bits, 7 gain levels
AO Channels             2, 16 bits, 2.8 MS/s
DIO Channels            24, 8 clocked
Counters/Timers        2, 32 bits, 80 MHz      

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