SOHO PROLAB TEST · MEASUREMENT · AUTOMATION
Ask SOHO Assistant Get Price
Home / Shop / NI USB-6221
National Instruments USB-6221 Multifunction data acquisition device
1 image: Click to enlarge
National Instruments · USB

NI USB-6221

The NI USB-6221 is an M Series multifunction USB data acquisition device with analog input and output, correlated digital I/O, two 32-bit counters/timers, and digital triggering.

ManufacturerNational Instruments
ModelUSB-6221
Product TypeMultifunction data acquisition device
● Available to Order
Condition: confirmed per unit

Request current pricing and lead time for this model. Our team will confirm the exact equipment configuration and condition.

Fast RFQ

Quote: USB-6221

We will reply by email.
Free Shippingfull policy linked
30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
Analog inputs16 single-ended or 8 differential; 16-bit
Maximum input sampling250 kS/s aggregate
Analog outputs2 channels; 16-bit
Digital I/O24 lines; 8 support clocked waveforms
Counters/timersTwo 32-bit counters/timers
SOHO Assistant
Ask about this exact model, a replacement, accessory, driver, rental or repair question.
Ask about specifications, compatibility, availability, rental or repair.
Ask SOHO Assistant
Overview

Product overview

Key product information and technical features.

The USB-6221 combines voltage acquisition, analog signal generation, digital I/O, and counter/timer functions in a USB-connected instrument. NI identifies laboratory automation, research, design verification, and manufacturing test as application areas.

NI documents screw-terminal and BNC versions with direct signal connections. The supplied catalog record does not identify the connection variant, so its exact connector configuration must be confirmed before selecting wiring.

  • Combines analog I/O, correlated digital I/O, and counter/timer functions.
  • Supports digital triggering for measurement tasks.
  • Uses the NI-DAQmx driver and configuration utility.
Verified specifications

Technical data

Verified product specifications.

Analog input configuration16 single-ended or 8 differential channels
Analog input resolution16 bits
Maximum analog input sample rate250 single-channel or multichannel aggregate kS/s
Analog input ranges±0.2, ±1, ±5, ±10 V
Analog output channels2 channels
Analog output resolution16 bits
Maximum analog output update rate833 with one channel; 740 per channel with two channels kS/s
Analog output range±10 V
Digital I/O24 individually configurable lines; Port 0 supports 8-bit waveforms
External power requirements11–30 V DC, 20 W
Condition & included items

What the actual unit includes

Confirm condition, included accessories and revision before ordering.

Condition

Confirmed per unit.

Included

Device / accessories confirmed in quote.

Revision

Exact revision confirmed when relevant.

Compatibility

Complete the measurement chain

Review system components and compatibility requirements.

National Instruments

Manufacturer

M Series / USB

DAQ family and host interface

USB-6221

Multifunction I/O device

Driver

NI-DAQmx

Confirm the connection variant and exact driver/operating-system support before integration.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

USB-6221 Product PageProduct Page · ni.com
Open →
PCI/PXI/USB-6221 SpecificationsSpecifications And Pinouts · ni.com
Open →
M Series User ManualUser Manual · docs-be.ni.com
Open →
NI 62xx Cable and Accessory Compatibility GuideTechnical resource
Open →
Shipping, warranty & returns

Commercial terms

Review shipping, warranty and return terms before ordering.

Shipping
Free Shipping. Full policy terms apply.
Warranty
30-Day Warranty. Standard coverage applies.
Returns
30-Day Returns. Return policy applies.
Price / Availability
Contact SOHO ProLab for current quote and availability.
Lifecycle services

Source, rent or repair the exact model

Choose pricing, rental or repair for this exact model.

Get Price

Current price, availability and exact unit details.

Rent This Model

Request the exact model or a suitable alternative.

Repair This Model

Send the model and failure symptoms for review.

FAQ

Product-specific questions

Product-specific answers based on available technical information.

Does this record identify a BNC or screw-terminal unit?

No. NI documents both versions, but the supplied catalog record does not specify which version this unit is.

Which driver does the USB-6221 use?

NI identifies NI-DAQmx as the device driver. Verify hardware and operating-system support for the intended driver release.

Ask SOHO AssistantProduct & compatibility help