TaoTronics TT-BS009 - Manual (Page 9)

9
Interface selection
This scanner supports interfaces such as keyboard wedge, RS-232 serial
wedge, and USB interface.
Typically, host is able to identify the host port type automatically. In extreme
cases, host port may need setting manually if the host fails to identify it.
Automatic Identification*
USB
PS/2 Key Board
RS232