diff --git a/src/boards/raytac_mdbt50q_db_40/board.h b/src/boards/raytac_mdbt50q_db_40/board.h
new file mode 100644
index 00000000..81e07dba
--- /dev/null
+++ b/src/boards/raytac_mdbt50q_db_40/board.h
@@ -0,0 +1,75 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Ha Thach for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef RAYTAC_MDBT50Q_DB_40_H
+#define RAYTAC_MDBT50Q_DB_40_H
+
+#define _PINNUM(port, pin)      ((port)*32 + (pin))
+
+/*------------------------------------------------------------------*/
+/* LED
+ *------------------------------------------------------------------*/
+#define LEDS_NUMBER             3
+/* This is the Green led marked D1 on the board */
+#define LED_PRIMARY_PIN         _PINNUM(1, 13)
+/* This is the Red led marked D2 on the board */
+#define LED_SECONDARY_PIN  	_PINNUM(1, 14)
+/* This is the Blue led marked D3 on the board */
+#define LED_TERTIARY_PIN  	_PINNUM(1, 15)
+/* There are one more unpopulated LEDs, but for the purposes of bootloader that
+ * doesn't matter. */
+#define LED_STATE_ON            0
+
+/*------------------------------------------------------------------*/
+/* BUTTON
+ *------------------------------------------------------------------*/
+#define BUTTONS_NUMBER          4
+
+#define BUTTON_1                _PINNUM(0, 11)
+#define BUTTON_2                _PINNUM(0, 12)
+#define BUTTON_3                _PINNUM(0, 24)
+#define BUTTON_4                _PINNUM(0, 25)
+#define BUTTON_PULL             NRF_GPIO_PIN_PULLUP
+
+//--------------------------------------------------------------------+
+// BLE OTA
+//--------------------------------------------------------------------+
+#define BLEDIS_MANUFACTURER     "Raytac"
+#define BLEDIS_MODEL            "MDBT50Q-DB-40"
+
+//--------------------------------------------------------------------+
+// USB
+//--------------------------------------------------------------------+
+
+#define USB_DESC_VID           0x239A
+#define USB_DESC_UF2_PID       0x00BB
+#define USB_DESC_CDC_ONLY_PID  0x00BB
+
+//------------- UF2 -------------//
+#define UF2_PRODUCT_NAME        "Raytac MDBT50Q Demo Board 40"
+#define UF2_VOLUME_LABEL        "MDBT50QBOOT"
+#define UF2_BOARD_ID            "nRF52840-MDBT50Q-1MV2"
+#define UF2_INDEX_URL           "https://www.raytac.com/product/ins.php?index_id=81"
+
+#endif // RAYTAC_MDBT50Q_DB_40_H
diff --git a/src/boards/raytac_mdbt50q_db_40/board.mk b/src/boards/raytac_mdbt50q_db_40/board.mk
new file mode 100644
index 00000000..9d29ac69
--- /dev/null
+++ b/src/boards/raytac_mdbt50q_db_40/board.mk
@@ -0,0 +1 @@
+MCU_SUB_VARIANT = nrf52840
diff --git a/src/boards/raytac_mdbt50q_db_40/pinconfig.c b/src/boards/raytac_mdbt50q_db_40/pinconfig.c
new file mode 100644
index 00000000..a983e4ab
--- /dev/null
+++ b/src/boards/raytac_mdbt50q_db_40/pinconfig.c
@@ -0,0 +1,19 @@
+#include "boards.h"
+#include "uf2/configkeys.h"
+
+__attribute__((used, section(".bootloaderConfig")))
+const uint32_t bootloaderConfig[] =
+{
+  /* CF2 START */
+  CFG_MAGIC0, CFG_MAGIC1,                       // magic
+  5, 100,                                       // used entries, total entries
+
+  204, 0x100000,                                // FLASH_BYTES = 0x100000
+  205, 0x40000,                                 // RAM_BYTES = 0x40000
+  208, (USB_DESC_VID << 16) | USB_DESC_UF2_PID, // BOOTLOADER_BOARD_ID = USB VID+PID, used for verification when updating bootloader via uf2
+  209, 0xada52840,                              // UF2_FAMILY = 0xada52840
+  210, 0x20,                                    // PINS_PORT_SIZE = PA_32
+
+  0, 0, 0, 0, 0, 0, 0, 0
+  /* CF2 END */
+};