This RS232 Serial DB9 Female to Female Mini Gender Changer Coupler Adapter Connector is the perfect solution for connecting two DB9 cables together to extend the length of your serial cable. The coupler adapter is designed with a 1:1 connection split/duplication and features a sturdy construction to ensure a secure and reliable connection. With its compact and lightweight design, this coupler adapter is easy to carry and store, making it an ideal accessory for professionals or home users who frequently need to extend their serial cable connections. It is compatible with a wide range of devices and models and is manufactured in China. This coupler adapter does not come with any manufacturer warranty and is a great addition to any computer cables and connectors collection.