Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
779958-04
NI 779958-04, 1.25 MS/s, 16 Bit ADC Bit Depth, USB-6255 Multifunction I/O Device
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments 779958-04 Multifunction I/O Device
The National Instruments 779958-04, also known as the USB-6255, is a multifunction data acquisition (DAQ) device designed for laboratory, industrial, and engineering applications. The unit is housed in an enclosed chassis and operates from 240 VAC Euro mains power. It provides analog input and output, 24 bidirectional digital I/O lines, two 32-bit counters/timers, and both analog and digital triggering. The front terminal area provides convenient connections for field wiring, while the built-in 4,095-sample FIFO buffer helps maintain consistent data acquisition during continuous operation.
The analog input section supports up to 80 single-ended or 40 differential channels with 16-bit resolution. The maximum sampling rate is 1.25 MS/s, with an absolute accuracy of ±1,920 µV. The device also provides two analog output channels with a maximum update rate of 2.86 MS/s, making them suitable for waveform generation and control applications.
The 779958-04 is compatible with NI-DAQmx drivers and configuration software, simplifying device setup and integration with applications developed in LabVIEW, C, and C++. Its combination of analog, digital, and timing functions allows a single DAQ device to handle a variety of measurement and control requirements.
In design verification, manufacturing test, research, and laboratory automation, the 779958-04 can be paired with SCC or SCXI signal-conditioning hardware for applications requiring additional signal conditioning, including high-voltage measurements and improved electrical isolation. The 24 digital I/O lines can be used to control relays, switches, and other equipment or to monitor the status of external devices.
The two 32-bit counters/timers provide additional measurement capabilities, including pulse counting, encoder feedback, and frequency measurement. With its USB 2.0 interface, the 779958-04 can connect directly to a computer, making it suitable for both benchtop and portable test setups. Its combination of high-channel-count analog acquisition, analog output, digital I/O, and counter/timer functionality makes it a versatile option for automated measurement and testing systems.
| Model | 779958-04 |
|---|---|
| Part Number | 779958-04 |
| Part Type | Multifunction USB DAQ |
| Input Power | 240 VAC Euro mains |
| Analog Input Channels | 80 SE / 40 Diff |
| ADC Bit Depth | 16 bits |
| Max Sample Rate | 1.25 MS/s |
| Accuracy (Abs.) | ±1920 µV |
| FIFO Buffer | 4095 samples |
| Digital I/O Lines | 24 bidirectional |
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