Moxa CBL-M25M9x2-50 is a serial cable for connecting a multiport serial card to two serial devices. Its one-to-two layout brings the card connection out to two separate serial ports.
At the card end, it has one male DB25 connector. The device end branches into two male DB9 connectors, matching setups that use DB9 serial connections. The cable is 50 cm (19.69 in) long, providing a short connection between the card and nearby equipment.
Moxa describes its serial cables as a way to extend serial-signal transmission distance and expand COM ports for serial connections. This model provides two DB9 ends from one DB25 card-side connection.