Get on Amazon.com : http://www.amazon.com/gp/product/B009AT5TB2?tag=clothingattes-20
StarTech.com 8 Port USB to DB9 RS232 Serial Adapter Hub with Industrial DIN Rail and Wall Mountable
Integrated wallmount brackets and included DIN Rail clips for versatile mounting options
Rugged all-metal enclosure for added durability in harsh environments
Easy plug and play installation with our USB Powered adapter - no power outlet required
USB to 8-Port Straight-Through RS232 Serial Adapter
Rugged metal construction
Wall-mountable and includes DIN Rail clips