--- type: product schema_version: 1 stock_number: "72314-22" canonical_url: "https://www.artisantg.com/72314-22/NI-USB-6221" json_url: "https://www.artisantg.com/72314-22/NI-USB-6221.json" generated_at: "2026-11-07T07:22:53.433Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # NI USB-6221 16-Bit Multifunction DAQ (Screw Terminal) _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: NI - Model: USB-6221 - Condition: Used and in Excellent Condition - Price: $500.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 2 lb, estimated - Shipping dimensions: 8X8X3 in, estimated ## Categories - Test Equipment > Electrical Test > DAQ (primary) - Test Equipment > Electrical Test > Multifunction ## Details Power Adapter Sold Separately. Part Number: 195840C-02, 779808-02 ## Function Performs analog-to-digital and digital-to-analog conversion with 16-bit resolution, simultaneous sampling across multiple channels, digital I/O operations, and counter/timer functions. Interfaces via USB connectivity with screw terminal connections for signal routing. Operates as bus-powered or externally powered multifunction data acquisition device for measurement and control applications requiring precision analog signal conditioning, digital signal processing, and real-time data streaming to host computing systems. ## Images - - - -