... compliant 3.With reasonable price USB 2.0 to RS232/DB-9 Serial Adapter with removable Jack Screws By PL FeaturesChipset ... bit Versions)Package Contents1 x USB 2.0 to RS232/DB-9 Serial Adapter with removable Jack Screws ABOUT FACTORYWe are ... 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 ...