Icom IC-705 USB-C/SEND Control Board Upgrade

Update: 07/03/2025 We have finished our next batch of boards. We will be shipping out all backorders starting next week.  About This is a drop-in replacement control board (Connect Unit B-9128B) for the Icom IC-705 radio. Designed by Ben (KD9LJF), it is an easy upgrade for any IC-705 radio. Installation Guide We have a step-by-step picture installation guide on our website: https://ihelpu.tech/icom-705-usbcsend-install-guide You can also find a video explanation and overview here: https://www.youtube.com/watch?v=H1DPDUeaDfw USB-C The upgraded control board has a USB-C port that retains all of the original port's functionality (including computer data). This port is just a connector swap and works identically to the original board. This means that it does not add any USB-C Power Delivery (PD) features. You can still charge the radio through the USB connector with any USB-C charger, but it will still only charge at 5V and around 7.5W from the charger with the radio turned off. SEND line