Black Box 8-Port USB to RS-232, RS422/485 Adapter / Converter 8 x DB9 Male
RS-232/422/485 x 8
Now you can connect your non-USB peripherals to your USB bus! Plug-and-play! All devices are immediately recognized by your system. Each port of the RS-232/RS-422/RS-485 USB Hub is individually configurable for RS-232, RS-422, or RS-485.