4 Way DB9 RS232 Push-Button Data Switch

Product Description 4Way DB9 RS232 Push-Button Data Switch High quality manual push-button switch No external power adaptor required Gold-plated contact for allDB9 female connectors Fully shielded metal case with anti-skid design Very useful applicationfor 4 computers to use one DB9 RS232 serial device OR one computer to use4 DB9 RS232 serial devices