Program cable for Vertex Standard VX-820-920 series Programming cable for Vertex Standard VX-820/920 series RIBLESS programming cable for Vertex Standard handheld transceivers Compatible VX-821, VX-824, VX-829, VX-921, VX-924, VX-929, VX-P821, VX-P824, VX-P829, VX-P921, VX-P924, VX-P929 Works for CT-109 compatible radio