... .USB 2.0 to RS232/DB-9 Serial Adapter with removable Jack Screws By PL 2.Rohs compliant 3.With reasonable price USB 2.0 to RS232/DB-9 Serial Adapter ... of all kinds of adapter ,such as telephone adapter,USB adapter ,SATA adapter,HDMI adapter,vga adapter,power adapter,etc.Our USB to RS232 adapter are almost sale to North America,eruopean country ...