To use 2 serial devices on the same RS-232 port of your computer. Also allows to work the other way around, i.e. share 1 serial device on 2 computers. Specifications: Compatible with the RS 232 standard, known as 'serial'. Push button selection. Input/Output via DB9 female socket (9 points). Outputs/Inputs via DB9 male sockets (9 points). Robust METAL shell. Dimensions: 11.5 x 10 x 3 cm.
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