Tenq&reg; USB Programming Cable for Yaesu Vertex Vx-6r 6e 7r 7e 120 127 170 177 Two Way Radio Works as virtual COM port in PC for Radio Programming(Programming Software & Drivers Required, NOT included in this product). Connector: 3.5 mm audio plug 4 conductors to USB. RLN4008 rib part build-in, No Radio Interface Box (RIB) required. Quick and easy programming of memory channels, memory names and set mode contents via PC. Draws low current from the USB port. Available for both desktops and laptops.