1 Port, RS-232 USB 2.0 Interface Boardw/USB cable, surge suppression (Embedded - No Case/Box)

$47.53

4 Port, RS-232 USB 2.0 Interface Boardw/USB cable, surge suppression (Embedded - No Case/Box)

$154.23

4 Port Embedded USB serial adapter board & cable, USB 2.0, RS-232/422/485 MEI, surge suppression

$173.63

8 Port embedded USB serial adapter board & cable, USB 2.0, RS-232, surge suppression

$290.03

8 Port embedded USB serial adapter board & cable, USB 2.0, RS-232/422/485 MEI, surge suppression

$328.83