Blue Sea 1039
https://www.bluesea.com/products/1039/12_24V_Dual_USB_4.8A_Chargers_-_Switch_Mount
With minor modifications these slip right in.
This thread, page 4, explains the install.
https://forum.ih8mud.com/threads/finally-a-fast-charge-usb-to-fit-an-80-series-cut-out.925782/