Author Topic: [TMK] HHKB Alt Controller with Mini-B/Type-C connector (Read 557872 times) This Alt controller board replaces stock controller and makes your HHKB full programmable. The controller is fully assembled and you can install it into your HHKB only with screw driver. For more technical information see also this thread. https://geekhack.org/index.php?topic=12047.0 Bluetooth and USB control