HP AdvanceStack Hub-8U J2610B Hardware Installation And Reference Manual page 53

Electromagnetic
Emissions
FCC part 15 Class A
EN 55022 Class A / CISPR-22 Class A
VCCI Level I
Complies with Canadian EMC Class A
requirements
Immunity
See the Declaration of Conformity for details at the end of the Regulatory Statements.
Accoustic Noise
Not applicable
Specifications
B-3