I've run a few products through FCC and CE testing, all including motor drivers (noisy) and USB ports (computer peripheral requirements for CE), running on mult

I've run a few products through FCC and CE testing, all including motor drivers (noisy) and USB ports (computer peripheral requirements for CE), running on multiple power supplies. Each failed a few tests at least a few times, typical price from start to finish from the testing facility (Austin, TX) was an average of $16k/device from first test to passing report. Not including our costs for travel or re-work.