PTZOptics DB9M-F-50 Serial DB9 Male To Female Plenum-Rated Extender Cable - 50fThe DB9 Extenders give you the ability to extend your serial VISCA cables over a longer distance, giving control of your camera via joystick or USB to Serial adapter to your PC with the VISCA software of your choice. These serial DB9 Male to Female cables are plenum rated. Specifications General Type Serial extension cable Features Plenum, thumbscrews Length 50 ft Color Black Connectivity CONNECTOR 9 pin D Sub (DB 9) male Connector (Second End) 9 pin