diff --git a/plugins/Kaleidoscope-Hardware-Keyboardio-Model100/src/kaleidoscope/device/keyboardio/Model100.cpp b/plugins/Kaleidoscope-Hardware-Keyboardio-Model100/src/kaleidoscope/device/keyboardio/Model100.cpp
index 34a33b14..c32bf3ba 100644
--- a/plugins/Kaleidoscope-Hardware-Keyboardio-Model100/src/kaleidoscope/device/keyboardio/Model100.cpp
+++ b/plugins/Kaleidoscope-Hardware-Keyboardio-Model100/src/kaleidoscope/device/keyboardio/Model100.cpp
@@ -238,6 +238,11 @@ void Model100::enableHardwareTestMode() {
   KeyScanner::setKeyscanInterval(2);
 }
 
+void Model100::rebootBootloader() {
+  USBCore().disconnect();
+  NVIC_SystemReset();
+}
+
 #endif
 
 }  // namespace keyboardio
diff --git a/plugins/Kaleidoscope-Hardware-Keyboardio-Model100/src/kaleidoscope/device/keyboardio/Model100.h b/plugins/Kaleidoscope-Hardware-Keyboardio-Model100/src/kaleidoscope/device/keyboardio/Model100.h
index bd6ebd08..5e666c45 100644
--- a/plugins/Kaleidoscope-Hardware-Keyboardio-Model100/src/kaleidoscope/device/keyboardio/Model100.h
+++ b/plugins/Kaleidoscope-Hardware-Keyboardio-Model100/src/kaleidoscope/device/keyboardio/Model100.h
@@ -43,6 +43,8 @@ struct cRGB {
 #include "kaleidoscope/driver/keyscanner/Base.h"
 #include "kaleidoscope/driver/led/Base.h"
 #include "kaleidoscope/driver/storage/GD32Flash.h"
+#include "kaleidoscope/driver/mcu/GD32.h"
+
 
 namespace kaleidoscope {
 namespace device {
@@ -145,6 +147,9 @@ struct Model100Props : public kaleidoscope::device::BaseProps {
 
   typedef kaleidoscope::driver::bootloader::gd32::Base BootLoader;
   static constexpr const char *short_name = "kbio100";
+
+  typedef kaleidoscope::driver::mcu::GD32Props MCUProps;
+  typedef kaleidoscope::driver::mcu::GD32<MCUProps> MCU;
 };
 
 #ifndef KALEIDOSCOPE_VIRTUAL_BUILD
@@ -156,7 +161,7 @@ class Model100 : public kaleidoscope::device::Base<Model100Props> {
   auto serialPort() -> decltype(Serial) & {
     return Serial;
   }
-
+  static void rebootBootloader();
   static void enableHardwareTestMode();
 };
 
diff --git a/src/kaleidoscope/driver/mcu/GD32.h b/src/kaleidoscope/driver/mcu/GD32.h
new file mode 100644
index 00000000..001b2d9c
--- /dev/null
+++ b/src/kaleidoscope/driver/mcu/GD32.h
@@ -0,0 +1,53 @@
+/* -*- mode: c++ -*-
+ * driver::MCU::GD32 -- GD32 MCU driver for Kaleidoscope, initially targeting the GD32F303 series
+ * Copyright (C) 2019, 2020  Keyboard.io, Inc
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <Arduino.h>                       // NVIC_Reset
+#include <USBCore.h>                       // For connect, disconnect, USBCore
+#include "kaleidoscope/driver/mcu/Base.h"  // for Base, BaseProps
+
+namespace kaleidoscope {
+namespace driver {
+namespace mcu {
+
+struct GD32Props : public kaleidoscope::driver::mcu::BaseProps {
+};
+
+#ifndef KALEIDOSCOPE_VIRTUAL_BUILD
+template<typename _Props>
+class GD32 : public kaleidoscope::driver::mcu::Base<_Props> {
+ public:
+  void detachFromHost() {
+    USBCore().disconnect();
+  }
+  void attachToHost() {
+    USBCore().connect();
+  }
+
+
+  void setup() {
+  }
+};
+#else
+template<typename _Props>
+class GD32 : public kaleidoscope::driver::mcu::Base<_Props> {};
+#endif  // ifndef KALEIDOSCOPE_VIRTUAL_BUILD
+
+}  // namespace mcu
+}  // namespace driver
+}  // namespace kaleidoscope