Aten UC485-AT Usb 2.0-adapter Usb A Male - Sub-d 9-pins Male ZwartThe ATEN UC485 is a high quality industrial adapter cable designed to instantly add an RS 422 485 port to your PC or laptop via a USB port. The adapter is powered via the USB connection without needing an external power supply. The UC485 adapter lets you use a single USB connection to create plug and play serial transfers without additional cables or complicated device installations. It lets you connect any RS 485 or RS 422 device to your computer's