StarTech.com 4 Port Serial Hub USB to RS232/RS485/RS422 Adapter, Industrial USB 2.0 to DB9 Serial Converter Hub, IP30 Rated, Din Rail Mountable Metal Serial Hub, 15kV ESD Protection - 6ft Locking Cable Incl - Sarjasovitin - USB 2.0 - RS-232/422/485 x 4 + USB 2.0 x 1 - musta - TAA-yhteensopiva