Multifunction I/O data acquisition device mioDAQ.

The mioDAQ USB-64xx series are compact data acquisition devices in a completely new design with a metal housing and USB-C connection. Thanks to high resolution, speed and maximum accuracy, you can go from observation to insight in the shortest possible time. With simultaneous sampling of up to 16 channels, you can drastically reduce test times, no matter how complex the scenario. 

Easy setup and seamless software integration means you're ready to go, whether you're on site or on the move. Everything you need in one powerful device.

Learn more about the mioDAQ


Modern measurement technology with improved usability.

Engineers use the mioDAQ models to perform ±10 volt measurements, build electromechanical test systems and validate complex electronic designs. The compact, easy-to-install devices have integrated spring terminals, so you no longer have to worry about blocks or cables. In addition, the devices are designed to be operable with little or no training.  

Combine mioDAQ with the free FlexLogger Lite data logging software or with APIs and sample programs for NI LabVIEW, Python and C/C++. All in all, mioDAQ is ideal for engineers who perform quick debugging at their desk before heading to a test lab or bench.

mioDAQ is best suited for:

  • Generating ±10 volt output control signals with 16 or 20 bit resolution
  • Generate ±10 volt signals to simulate sensors
  • High-speed voltage signals with up to 1 MSa/s per channel  
  • Voltage drops across a shunt resistor for current measurement
  • Battery cell voltages (±10 volt peak measurement of the cell)
  • Power rails on USB/battery-powered electronic printed circuit boards (PCBs)
  • and other applications

Better measurements, set-up and software.

Features & Highlights.

Up to 20 bits and 1 MSa/s per channel.

Higher resolution and higher speed measurements provide insights into your test that would not be possible with lower quality inputs. Use the high resolution and multiple gain settings to amplify low voltage systems.

16 flexible DIO lines.

Set each line independently as a digital input or digital output and enable the connection and forwarding of external clocks or trigger signals and forwarding to a counter.

100 MHz time base.

The onboard timebase is the internal ‘heartbeat’ that drives all digital circuits. Sample clocks, trigger channels and counters/timers use the timebase as an integrated reference to generate clock frequencies and store digital edges. Analogue triggers respond faster and sampling frequencies are more accurate with a faster timebase.

Independent timing engines for analogue and digital I/O.

You can set different rates for analogue input and output channels as well as digital lines, as each channel type has its own timing engine.

  • Synchronisation of subsystems with the same clock (AI, AO, DIO all with the same rate and time)  
  • Trigger multiple subsystems (start simultaneously, run at different rates) 
  • Repeatedly triggerable acquisition (acquire a set number of samples based on a trigger, then reset and wait for the next trigger) 
  • Trigger for analogue measurements (trigger on a voltage input value)

Each mioDAQ model comes with free FlexLogger Lite data logging software, ideal for engineers and researchers who need to log data without programming.

Scan the QR code on the back of the device to access the user manual, specifications, pin assignment and links to download FlexLogger Lite and drivers for LabVIEW, Python C, C++ or C# as well as explanatory videos.

Sometimes you just need a way to secure or fasten devices. For this reason, there are openings for cable ties on the device.


Connections and interfaces.

Discover the most important connections and interfaces of the mioDAQs.


Model overview.

Choose the model that best suits your specific requirements to ensure the best data capture for your applications.

NI 782604-01
Delivery time upon request
NI 782604-01
Delivery time upon request
NI 782604-01
Delivery time upon request
NI 782604-01
Delivery time upon request
USB-6421
  • 16 single-ended, 8 differential
  • Sample rate: max. 250 kSa/s (1 ch)
  • Multiplex mode
  • 16 bit resolution
  • 2 analog output channels
  • 16 digital I/O channels

USB-6423
  • 32 single-ended, 16 differential
  • Max. 250 kSa/s (1 ch)
  • Multiplex mode
  • 16 bit resolution
  • 4 analog output channels
  • 16 digital I/O channels

USB-6451
  • 16 single-ended, 8 differential
  • Max. 1 MSa/s per channel (8 ch*)
  • Multiplex mode or simultaneous
  • 20 bit resolution
  • 2 analog output channels
  • 16 digital I/O channels

USB-6453
  • 32 single-ended, 16 differential
  • Max. 1 MSa/s per channel (16 ch*)
  • Multiplex mode or simultaneous
  • 20 bit resolution
  • 4 analog output channels
  • 16 digital I/O channels

* Simultaneously

Additional accessories

NI 789986-01
USB-64xx Mounting Kit for DIN Rail, mioDAQ
On Request
Delivery time upon request
NI 789955-01
USB-64xx Mounting Kit for DIN Rail, Wall or Panel Mount, mioDAQ
On Request
Delivery time upon request
NI 789953-01
USB-64xx Rack Mount Shelf, 1U, 19-inch, mioDAQ
On Request
Delivery time upon request
NI 789957-02
USB Cable, Type-C to Right Angle Type-C, USB 3.2 Gen 1, 2m
On Request
Delivery time upon request
NI 789956-02
USB Cable, Type-C to Type-C with Screw, USB 3.2 Gen 1, 2m
On Request
Delivery time upon request
NI 785080-01
Backshell NI 9940 for 36-pin. Tension spring clamp (1 piece)
€70.00
7 in stock. Ready to ship in 1 business day
NI 785502-01
NI-9974, 36-pin spring terminal block for front mounting
€57.00
19 in stock. Ready to ship in 1 business day
NI 781015-01
NI screwdriver, (+) Phillips screws and (-) slotted screws (15 pieces)
€64.00
Delivery time upon request

Data acquisition software.

Select the right software for measurements with mioDAQ devices. By the way, do you already own other NI-DAQ devices? The mioDAQ uses the same driver, so now is a good time to evaluate and upgrade.

  • Logging in Excel or .TDMS
  • Configure measurements 
  • Real-time graphs, trends and counters  
  • Record results
  • Free version: FlexLogger Lite

More about FlexLogger
  • Create a professional user interface
  • Programme the way you imagine it in your head 
  • Integrate all your measurement devices for an automated test system that combines data acquisition with analysis, logic, data recording and a professional real-time display
  • Integrate code from Python, C or
    MathWorks® MATLAB®

More about LabVIEW
  • Combines the best NI test software components for an optimised workflow
  • Modernise your lab and standardise your test frameworks
  • Configure, visualise and automate measurements, analyse data and exchange protocols

More about LabVIEW+

NI seminars.

As your training partner for seminars and practical training courses, we offer consulting and training from a single source. Basic and advanced courses with certified instructors - LabVIEW, TestStand, NI-DAQmx, DIAdem and more. For beginners and professionals in English or German.

Deepen your knowledge of the NI applications used and learn together with people who have the same professional interests.

To the seminar programme


Do you have an individual request?

Test and measurement requirements can often be very individual. We help you to perfectly customise your mioDAQ to your individual needs. Do not hesitate to contact us. Whether directly on the phone or via an online demo from the comfort of your screen - our experts are there for you.

Do you have questions about a product?

Do you need support with your measurement task?

Do you want to use one of our individual services?

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