diff --git a/hardware/arduino/sam/variants/arduino_due_x/variant.cpp b/hardware/arduino/sam/variants/arduino_due_x/variant.cpp
index 7b3ad9d6b..f4608f9f5 100644
--- a/hardware/arduino/sam/variants/arduino_due_x/variant.cpp
+++ b/hardware/arduino/sam/variants/arduino_due_x/variant.cpp
@@ -281,6 +281,12 @@ extern const PinDescription g_APinDescription[]=
   { PIOB, PIO_PB15A_CANRX1,     ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL,                  NO_ADC, NO_ADC, NOT_ON_PWM,  NOT_ON_TIMER }, // CANRX1
   { PIOB, PIO_PB14A_CANTX1,     ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT, PIN_ATTR_DIGITAL,                  NO_ADC, NO_ADC, NOT_ON_PWM,  NOT_ON_TIMER }, // CANTX1
 
+  // 90 .. 91 - "All CAN pins" masks
+  // 90 - CAN0 all pins
+  { PIOA, PIO_PA1A_CANRX0|PIO_PA0A_CANTX0, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NO_ADC,  NO_ADC, NOT_ON_PWM,  NOT_ON_TIMER },
+  // 91 - CAN1 all pins
+  { PIOB, PIO_PB15A_CANRX1|PIO_PB14A_CANTX1, ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT, (PIN_ATTR_DIGITAL|PIN_ATTR_COMBO), NO_ADC, NO_ADC, NOT_ON_PWM,  NOT_ON_TIMER },
+
   // END
   { NULL, 0, 0, PIO_NOT_A_PIN, PIO_DEFAULT, 0, NO_ADC, NO_ADC, NOT_ON_PWM, NOT_ON_TIMER }
 } ;
diff --git a/hardware/arduino/sam/variants/arduino_due_x/variant.h b/hardware/arduino/sam/variants/arduino_due_x/variant.h
index 11893cfe8..2f1f27df3 100644
--- a/hardware/arduino/sam/variants/arduino_due_x/variant.h
+++ b/hardware/arduino/sam/variants/arduino_due_x/variant.h
@@ -165,6 +165,18 @@ static const uint8_t CANRX = 68;
 static const uint8_t CANTX = 69;
 #define ADC_RESOLUTION		12
 
+/*
+ * Complementary CAN pins
+ */
+static const uint8_t CAN1RX = 88;
+static const uint8_t CAN1TX = 89;
+
+// CAN0
+#define PINS_CAN0            (90u)
+// CAN1
+#define PINS_CAN1            (91u)
+
+
 /*
  * DACC
  */