StarTech.com 4 Port USB to DB9 RS232 Serial Adapter Hub - Industrial DIN Rail and Wall Mountable - 1 x 4-pin Type B Female USB 2.0 USB, 4 x 9-pin DB-9
Click For Info
StarTech.com 8 Port USB to DB9 RS232 Serial Adapter Hub - Industrial DIN Rail and Wall Mountable - USB - 8 x Number of Serial Ports External - 1 x Num
Click For Info