StarTech.com Portable 4 Port SuperSpeed Mini USB 3.0 Hub - Black

USB Galvanic Isolator 6KV - Filter Electric Noise TAA USB 2.0

StarTech.com Part# U1-USB-ISOLATOR

USB/Firewire Adapters – TAA Compliant – Protect host computer and USB devices from voltage spikes and ground loops up to 6000V with this in-line galvanic isolator - Plug-and-play isolator supports USB 2.0 (12Mbps) devices and 5V/250mA - ...