I had installed/plugged 4 HSM (2 old V1 and 2 new V2 ) on my Server and after a while the power supply “burned” - After years of proper running, I am pretty sure that the load of the HSM finally killed it. So I wonder what is the real power usage of the NK Keys ? I reviewed the data sheet and have not seen a dedicated answer. The data sheet declares for a HSM e.g. USB A, Ver 1.1 , what would lead to a maximum of 100mA. Is that the limit ? ( also during heavy load ?)
To be clear: it was not the NK HSM or the fact that I had plugged every available USB slot with a NK HSM. The power supply was anyhow on the edge as I hacked the Server with more disks and network than usual and did not upgraded the power supply to the right level. But as it worked now several years, the final constat load of the NK’s might have killed the power-supply ( MTBF could always happen ).