You can not pass-through any host USB devices directly to the virtual machine with RHV-H. If utilizing RHEL with KVM as your hypervisor, customization hooks can be leveraged to directly attached devices to the VM from the host.
However, using RHVs technical workstation virtualization solution (RHV-D) you can pass-through USB devices from client devices (e.g. technical workstation) via the SPICE protocol capabilities.