diff --git a/src/arduino/ports/ch32/Adafruit_TinyUSB_ch32.cpp b/src/arduino/ports/ch32/Adafruit_TinyUSB_ch32.cpp
index 80a87b90..bd31f942 100644
--- a/src/arduino/ports/ch32/Adafruit_TinyUSB_ch32.cpp
+++ b/src/arduino/ports/ch32/Adafruit_TinyUSB_ch32.cpp
@@ -25,7 +25,8 @@
 #include "tusb_option.h"
 
 #if CFG_TUD_ENABLED && (defined(ARDUINO_ARCH_CH32) || defined(CH32V20x) ||     \
-                        defined(CH32V30x) || defined(CH32L10x))
+                        defined(CH32V30x) || defined(CH32X035) ||              \
+                        defined(CH32L10x))
 
 #include "Arduino.h"
 #include "arduino/Adafruit_USBD_Device.h"
@@ -64,7 +65,7 @@ USBWakeUp_IRQHandler(void) {
 
 #if defined(CH32V10x)
 #define USBHDWakeUp_IRQHandler USBWakeUp_IRQHandler
-#elif defined(CH32L10x)
+#elif defined(CH32X035) || defined(CH32L10x)
 #define USBHD_IRQHandler USBFS_IRQHandler
 #define USBHDWakeUp_IRQHandler USBFSWakeUp_IRQHandler
 #endif
@@ -115,6 +116,8 @@ void TinyUSB_Port_InitDevice(uint8_t rhport) {
   EXTEN->EXTEN_CTR &= ~EXTEN_USB_5V_SEL;
 
 #define RCC_AHBPeriph_OTG_FS RCC_AHBPeriph_USBHD
+#elif defined(CH32X035)
+#define RCC_AHBPeriph_OTG_FS RCC_AHBPeriph_USBFS
 #elif defined(CH32L10x)
 #define RCC_AHBPeriph_OTG_FS RCC_HBPeriph_USBFS
 #define RCC_AHBPeriphClockCmd RCC_HBPeriphClockCmd
@@ -139,6 +142,9 @@ void TinyUSB_Port_InitDevice(uint8_t rhport) {
   case 72000000:
     usb_div = RCC_USBCLKSource_PLLCLK_1Div5;
     break;
+#elif defined(CH32X035)
+  case 48000000:
+    break;
 #elif defined(CH32L10x)
   case 48000000:
     usb_div = RCC_USBCLKSource_PLLCLK_Div1;
@@ -156,7 +162,7 @@ void TinyUSB_Port_InitDevice(uint8_t rhport) {
 
 #if defined(CH32V30x)
   RCC_OTGFSCLKConfig(usb_div);
-#else
+#else !defined(CH32X035)
   RCC_USBCLKConfig(usb_div);
 #endif
 
diff --git a/src/arduino/ports/ch32/tusb_config_ch32.h b/src/arduino/ports/ch32/tusb_config_ch32.h
index 9b41ebd8..d56d0367 100644
--- a/src/arduino/ports/ch32/tusb_config_ch32.h
+++ b/src/arduino/ports/ch32/tusb_config_ch32.h
@@ -39,6 +39,8 @@ extern "C" {
 #define CFG_TUSB_MCU OPT_MCU_CH32V20X
 #elif defined(CH32V30x)
 #define CFG_TUSB_MCU OPT_MCU_CH32V307
+#elif defined(CH32X035)
+#define CFG_TUSB_MCU OPT_MCU_CH32X035
 #elif defined(CH32L10x)
 #define CFG_TUSB_MCU OPT_MCU_CH32L10X
 #warning "CH32L103 is not working yet"
diff --git a/src/common/tusb_mcu.h b/src/common/tusb_mcu.h
index afabae61..f8957f20 100644
--- a/src/common/tusb_mcu.h
+++ b/src/common/tusb_mcu.h
@@ -473,8 +473,8 @@
   #define TUP_RHPORT_HIGHSPEED    CFG_TUD_WCH_USBIP_USBHS
   #define TUP_DCD_ENDPOINT_MAX    (CFG_TUD_WCH_USBIP_USBHS ? 16 : 8)
 
-#elif TU_CHECK_MCU(OPT_MCU_CH32L10X)
-  // l103 support USBFS only
+#elif TU_CHECK_MCU(OPT_MCU_CH32X035) || TU_CHECK_MCU(OPT_MCU_CH32L10X)
+  // x035 and l103 support USBFS only
   #define TUP_USBIP_WCH_USBFS
 
   #if !defined(CFG_TUD_WCH_USBIP_USBFS)
diff --git a/src/portable/wch/ch32_usbfs_reg.h b/src/portable/wch/ch32_usbfs_reg.h
index cf7357e7..7f9aac9f 100644
--- a/src/portable/wch/ch32_usbfs_reg.h
+++ b/src/portable/wch/ch32_usbfs_reg.h
@@ -97,6 +97,11 @@
 #elif CFG_TUSB_MCU == OPT_MCU_CH32V307
   #include <ch32v30x.h>
   #define USBHD_IRQn OTG_FS_IRQn
+#elif CFG_TUSB_MCU == OPT_MCU_CH32X035
+  #include <ch32x035.h>
+  #define USBOTG_FS USBFSD
+  #define USBHD_IRQn USBFS_IRQn
+#endif
 #elif CFG_TUSB_MCU == OPT_MCU_CH32L10X
   #include <ch32l103.h>
   #define USBOTG_FS USBFSD
diff --git a/src/tusb_option.h b/src/tusb_option.h
index da842a00..4f0b0f5d 100644
--- a/src/tusb_option.h
+++ b/src/tusb_option.h
@@ -183,7 +183,8 @@
 #define OPT_MCU_CH32F20X         2210 ///< WCH CH32F20x
 #define OPT_MCU_CH32V20X         2220 ///< WCH CH32V20x
 #define OPT_MCU_CH32V103         2230 ///< WCH CH32V103
-#define OPT_MCU_CH32L10X         2240 ///< WCH CH32L10x
+#define OPT_MCU_CH32X035         2240 ///< WCH CH32X035
+#define OPT_MCU_CH32L10X         2250 ///< WCH CH32L10x
 
 // NXP LPC MCX
 #define OPT_MCU_MCXN9            2300  ///< NXP MCX N9 Series