NI USB-4431

This product is designed to meet the requirements of the following 

standards of safety for information technology equipment:

• IEC 60950-1, EN 60950-1

• UL 60950-1, CSA 60950-1

Note For UL and other safety certifications, refer to the product label or visit 

ni.com/certification, search by model number or product line, and click the 

appropriate link in the Certification column.

Note The protection provided by this equipment may be impaired if it is used in a manner 

not described in this document.

This product is designed to meet the requirements of the following 

standards of EMC for electrical equipment for measurement, control, and 

laboratory use:

• EN 61326 EMC requirements; Minimum Immunity

• EN 55011 Emissions; Group 1, Class A

• CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A

Note For EMC compliance, operate this device according to product documentation.

CE

This product meets the essential requirements of applicable European 

Directives, as amended for CE marking, as follows:

• 73/23/EEC; Low-Voltage Directive (safety)

• 89/336/EEC; Electromagnetic Compatibility Directive (EMC)

Note Refer to the Declaration of Conformity (DoC) for this product for any additional 

regulatory compliance information. To obtain the DoC for this product, visit ni.com/

certification, search by model number or product line, and click the appropriate link 

in the Certification column.