Screw Term Legacy USB DAQ Device, USB-6251

Screw Term Legacy USB DAQ Device, USB-6251


The NI USB-6251 is a USB high-speed M Series multifunction DAQ module optimized for superior accuracy at fast sampling rates.

The USB-6251 is designed specifically for mobile or space-constrained applications. Plug-and-play installation minimizes configuration and setup time, while direct screw-terminal connectivity helps keep costs down and simplifies signal connections. NI-DAQmx driver and measurement services software provides easy-to-use configuration and programming interfaces with features such as the DAQ Assistant to help reduce development time.

  • Analog Inputs: 32 SE/16 DI · 250 kS/s · 16 bits
  • Analog Outputs: 4 · 833 kS/s · 16 bits
  • Digital I/O : 48 DIO · 1 MHz
  • Counter/Timers: 2 · 32 bits · 80 MHz

  • 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
  • National Instruments recommends the X Series USB-6351 for all new applications

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