National Instruments NI USB-621x User Manual

Chapter 1 Getting Started
© National Instruments Corporation 1-3 NI USB-621x User Manual
Installing the Hardware
The NI-DAQmx for USB Devices Getting Started Guide contains
non-software-specific information about how to install USB devices.
Device Pinouts
Refer to Appendix A, Device-Specific Information, for NI 621x device
pinouts.
Device Specifications
Refer to the NI 621x Specifications, available on the NI-DAQ Device
Document Browser or
ni.com/manuals, for more detailed information
about NI 621x devices.
Device Accessories
NI offers a variety of accessories to use with your DAQ device. Refer to
Appendix A, Device-Specific Information, or
ni.com for more
information.

National Instruments NI USB-621x Specifications

General

Model	NI USB-621x
Category	Computer Hardware
Interface	USB
Analog Input Resolution	16 bits
Analog Input Sample Rate	250 kS/s (aggregate)
Analog Output Channels	2
Analog Output Resolution	16 bits
Digital I/O Channels	8
Counter/Timers	2
Operating System Compatibility	Windows, Linux
Power Supply	USB powered
Device Type	Data Acquisition Device
Analog Input Channels	16 single-ended or 8 differential
Analog Input Range	±10 V
Operating Temperature	0 °C to 50 °C