NI USB-6221 16-Bit Multifunction DAQ (Screw Terminal)
Request a Quote
Get a formal quote for this item, including volume pricing and PO terms.
Item details
| Part Number | USB-6221 |
|---|---|
| In Stock | 1 |
| Available | Today |
| Location | Champaign, IL USAships worldwide |
| Stock # | 72314-22 |
| Ship Weight | 2 lbs /ea |
| Condition | Used and in Excellent Condition |
| Inspection | Before every shipment |
| Warranty | 1-Year Warranty with 30-Day Return Guarantee |
Description
Part Number: 195840C-02, 779808-02
Click anywhere or press Esc to close
1 / 42 / 43 / 44 / 4That idle equipment in your warehouse could be cash.
Government & Enterprise Buyers: volume pricing, POs and government purchasing.
Government SalesWrite a Review
Share your experience with this item to help other buyers.
Make an Offer
Submit Your Offer, We’re Here to Assist! If we find your offer reasonable our dedicated customer service team will get back to you.
Request More Information
Have a question about this item? Send us a message and a specialist will follow up.
Thank You!
We have received your InstraView Request and will be contacting you shortly.
More Information
NI USB-6221 16-Bit Multifunction DAQ (Screw Terminal) Overview
Features:
- Up to 80 Analog Inputs at 16 bits, 1.25 MS/s (1 MS/s or 750 KS/s Scanning)
- Up to 4 Analog Outputs at 16 bits, 2.8 MS/s (2 µs full-scale settling)
- Up to 48 TTL/CMOS Digital I/O Lines (Up to 32 Hardware-Timed at Up to 1 MHz)
- Two 32-bit, 80 MHz Counter/Timers
The NI USB-6221 16-Bit Multifunction DAQ (Screw Terminal) may still be available for purchase and support from Artisan Technology Group beyond End-Of-Life (EOL) by the manufacturer (OEM).
16-Bit Multifunction DAQ (Screw Terminal) Price & Specs - National Instruments
NI USB-6221 16-Bit Multifunction DAQ (Screw Terminal) Description
Functions
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.
This section includes content generated with the assistance of artificial intelligence (AI) tools. AI is used to increase efficiency and provide timely information. Please note that the content may not have been reviewed for accuracy or completeness. Use this information at your own discretion, and verify details independently as needed.
NI USB-6221 16-Bit Multifunction DAQ (Screw Terminal) Manuals, Datasheets, Drivers, Links
NI USB-6221 16-Bit Multifunction DAQ (Screw Terminal) Specs
| General | |
|---|---|
| Manufacturer | NI |
| Model | USB-6221 |
| Condition | Used and in Excellent Condition |
| Product Family | USB-6221, USB-6225, USB-6229, USB-6251, USB-6255, USB-6259, 779628-01, 780107, 780108, 780169, 780170, 779678, 780106, 780105, 779677, 780214-01, 779974-01 |
Need More Info
We know that questions arise, and that sometimes you need more details or a closer look to make the right decision. That’s why we make it easy for you to reach out directly—so you’re never left wondering.
With our team, you’re just a message away from clarity and confidence. Whether you have a specific question, need a particular image, or want more details, the request form puts you in control. Let us know what you need, and we’ll bring the answers straight to you—no guesswork required!
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Artisan Scientific Corporation dba Artisan Technology Group is not affiliated with or a distributor for NI. The depiction, description, or sale of products featuring names, trademarks, brands, and logos is for identification and/or reference purposes only and does not indicate any affiliation with or authorization by any rights holder.
- Quick Quotes:
- Receive price & availability FAST from our dedicated customer service team.
- Delivery:



Expedited, Freight, and International shipping available.- Returns:
- No hassle return policy.
- Repair:
- Our team of engineers are creative problem solvers who understand your challenges.
- Custom Calibration:
- You give us the specs and we do the rest.
What Customers Are Saying
- Kevin K. Google
Great company staff is extremely knowledgeable!!
- Albert P.
I just want to thank you and the staff at Artisan for your prompt dispatch of the 34401A main board. I got it a couple of hrs. ago, removed the old board, installed the new and the result is as shown in the attachment. It not only works, but is calibrated to the last digit! I am very pleased and will definitely recommend your firm to my friends and colleagues. I really appreciate doing business with a firm that values service.
- Amelia C. Google
Have dealt with Artisan for over a decade and have always found them to be knowledgeable, professional and have a great inventory to choose from! Great company!
- Andrea M. Google
Excellent products and services, top notch employees!
- Debbie A. Google
Great company with great people. Always a pleasure to do business with Artisan!
- Dongmin K.
Fast shipping on replacement parts we thought we’d never find!
- Lonnie G.
Don’t worry about damage to your items during shipping – the box ours came in could have taken a beating and would have still survived!
- Brian S.
Artisan saved us headaches and money by helping us find a replacement Tektronix VXI module. Finding quality replacement parts is difficult and I'm glad they had what I needed.
- 220,000+Inventory in stock
- 20,000+Customers
- 50,000+Warehouse (sq ft)
- 148+Countries served
Our Mission
100% Satisfaction
We believe expertise is priceless. With over 25 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.
Trust Guaranteed
Every item is inspected before it ships, much of our inventory is functionally tested in our onsite service center, and eligible purchases are backed by our Limited Warranty.
Expertise
Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.
Used equipment in excellent physical and cosmetic condition.
Every item ships with Artisan's stated warranty. In-house repair capability backs it up.
ITAR / DDTC registered, counterfeit mitigation for military COTS, and DMSMS obsolescence support.



















