It is converted the USB to RS-485/422, so can be easily adopted for industrial machines with RS-485/422 interfaces. US-101-485 is compatible with fully compatible with the USB V1.0～2.0. US-101-485’s electrical power is from USB port and doesn't need any power adapter. You can connect a PC USB port or USB hub to US-101-485 via the USB cable and High-Speed RS-485/422 serial port which features easy connectivity for traditional serial devices in your working environments.