USB-6221 OEM

Name: USB-6221 OEM
Brand: National Instruments

The NI USB-6221 OEM is a board-level M Series multifunction USB DAQ device for integration into equipment. It combines 16-bit analog acquisition at up to 250 kS/s aggregate with two analog outputs, 24 digital I/O lines, and two 32-bit counters/timers.

ManufacturerNational Instruments

ModelUSB-6221 OEM

Part Number195959-02

Product TypeBoard-level multifunction 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 OEM

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

Input sampling250 kS/s maximum aggregate

Analog outputs2 channels, 16-bit

Digital I/O24 lines; 8 support clocked waveform I/O

Counters/timers2, each 32-bit

OEM signal connections34-pin analog and 50-pin digital connectors

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 OEM provides the USB-6221 measurement functions in a board-level format rather than a screw-terminal or BNC enclosure. NI identifies part number 195959-02 as the USB-6221 OEM M Series board-only kit.

For integration planning, the OEM user guide supplies model-specific connector pinouts, mechanical drawings, and information about grounding, indicators, and switches. Use these OEM drawings rather than the connection diagrams for enclosed USB-6221 variants.

Selectable analog input ranges of ±0.2 V, ±1 V, ±5 V, and ±10 V.
Two ±10 V analog outputs support waveform generation.
Port 0 supports clocked digital acquisition and generation on eight lines.
Two 32-bit counters/timers and digital triggering complement the analog and digital I/O.

Verified specifications

Technical data

Verified product specifications.

Analog input configuration	16 single-ended or 8 differential
ADC resolution	16 bit
Maximum analog input sample rate	250 single-channel or multichannel aggregate kS/s
Analog input ranges	±0.2, ±1, ±5, ±10 V
Analog outputs	2 channels, 16-bit, ±10 V
Maximum analog output update rate	833 with one channel; 740 per channel with two channels kS/s
Digital I/O	24 lines; clocked waveform I/O on Port 0 only
Counters/timers	2 × 32-bit
OEM signal connectors	One 34-pin analog connector and one 50-pin digital connector