The UTS-401BK-SI RS422/485 to USB Adapter is designed for your Notebook PC, workstation, thin client, or server to provide instant Serial port expansion via the Universal Serial Bus (USB). It supports screw lock features for the upstream (USB type B) connector with the screw lock USB cables. It prevents from disconnecting the USB cables accidently. The UTS-401BK-SI is compatible with new and legacy RS422/485 devices. It is easy to install and use without turning your PC¦s power off. It provides the scalability to quickly adapt to new USB technologies. Complete product line offer many choices help you to expand and make your network grow with your requirements. With the USB Plug-and-Play feature, simply plug in, follow the instructions of Install Wizard, then you are done. You don’t have to deal with Card Slots, I/O address, IRQ jumpers, DMA and others when you are connecting the devices. The System will recognize the device and install the drivers automatically. The UTS-401BK-SI is an ideal solution for your expanding applications.