diff --git a/README.md b/README.md
index 91c6591451dd..a150e8faa5c7 100644
--- a/README.md
+++ b/README.md
@@ -67,10 +67,16 @@ Marlin 2.0 introduces a layer of abstraction so that all the existing high-level
 
 ## Submitting Changes
 
-| boards                                                                        | processor                                                                                      | speed | flash    | sram   | logic  | fpu |
-| ----------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- | ----- | -------- | ------ | ------ | --- |
-| [Arduino STM32](https://github.com/rogerclarkmelbourne/Arduino_STM32)         | [STM32F1](https://www.st.com/en/microcontrollers-microprocessors/stm32f103.html) ARM-Cortex M3 | 72MHz | 256-512k | 48-64k | 3.3V   | no  |
-| [STEVAL-3DP001V1](http://www.st.com/en/evaluation-tools/steval-3dp001v1.html) | [STM32F401VE Arm-Cortex M4](http://www.st.com/en/microcontrollers/stm32f401ve.html)            | 84MHz | 512k     | 64+32k | 3.3-5V | yes |
+| boards                                                                                                     | processor                                                                                      | speed | flash    | sram   | logic | fpu |
+| ---------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- | ----- | -------- | ------ | ----- | --- |
+| [Arduino STM32](https://github.com/rogerclarkmelbourne/Arduino_STM32)                                      | [STM32F1](https://www.st.com/en/microcontrollers-microprocessors/stm32f103.html) ARM-Cortex M3 | 72MHz | 256-512k | 48-64k | 3.3V  | no  |
+| [Geeetech3D GTM32](https://github.com/Geeetech3D/Diagram/blob/master/Rostock301/Hardware_GTM32_PRO_VB.pdf) | [STM32F1](https://www.st.com/en/microcontrollers-microprocessors/stm32f103.html) ARM-Cortex M3 | 72MHz | 256-512k | 48-64k | 3.3V  | no  |
+
+#### STM32F4
+
+| boards                                                                        | processor                                                                           | speed | flash | sram   | logic  | fpu |
+| ----------------------------------------------------------------------------- | ----------------------------------------------------------------------------------- | ----- | ----- | ------ | ------ | --- |
+| [STEVAL-3DP001V1](http://www.st.com/en/evaluation-tools/steval-3dp001v1.html) | [STM32F401VE Arm-Cortex M4](http://www.st.com/en/microcontrollers/stm32f401ve.html) | 84MHz | 512k  | 64+32k | 3.3-5V | yes |
 
 #### Teensy++ 2.0