diff --git a/Source/Core/Common/CommonPaths.h b/Source/Core/Common/CommonPaths.h
index 1482b9656cc7..4e4a6c1c4aa7 100644
--- a/Source/Core/Common/CommonPaths.h
+++ b/Source/Core/Common/CommonPaths.h
@@ -34,6 +34,7 @@
 
 // Subdirs in the User dir returned by GetUserPath(D_USER_IDX)
 #define GC_USER_DIR "GC"
+#define TRI_USER_DIR "Triforce"
 #define GBA_USER_DIR "GBA"
 #define WII_USER_DIR "Wii"
 #define CONFIG_DIR "Config"
diff --git a/Source/Core/Common/FileUtil.cpp b/Source/Core/Common/FileUtil.cpp
index 0eac268b0042..9181d439a19b 100644
--- a/Source/Core/Common/FileUtil.cpp
+++ b/Source/Core/Common/FileUtil.cpp
@@ -931,6 +931,7 @@ static void RebuildUserDirectories(unsigned int dir_index)
   {
   case D_USER_IDX:
     s_user_paths[D_GCUSER_IDX] = s_user_paths[D_USER_IDX] + GC_USER_DIR DIR_SEP;
+    s_user_paths[D_TRIUSER_IDX] = s_user_paths[D_USER_IDX] + TRI_USER_DIR DIR_SEP;
     s_user_paths[D_WIIROOT_IDX] = s_user_paths[D_USER_IDX] + WII_USER_DIR;
     s_user_paths[D_CONFIG_IDX] = s_user_paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
     s_user_paths[D_GAMESETTINGS_IDX] = s_user_paths[D_USER_IDX] + GAMESETTINGS_DIR DIR_SEP;
diff --git a/Source/Core/Common/FileUtil.h b/Source/Core/Common/FileUtil.h
index 415c3fd10239..2dda5a7aab59 100644
--- a/Source/Core/Common/FileUtil.h
+++ b/Source/Core/Common/FileUtil.h
@@ -27,6 +27,7 @@ enum
 {
   D_USER_IDX,
   D_GCUSER_IDX,
+  D_TRIUSER_IDX,
   D_WIIROOT_IDX,          // always points to User/Wii or global user-configured directory
   D_SESSION_WIIROOT_IDX,  // may point to minimal temporary directory for determinism
   D_CONFIG_IDX,           // global settings
diff --git a/Source/Core/Core/HW/EXI/EXI_DeviceBaseboard.cpp b/Source/Core/Core/HW/EXI/EXI_DeviceBaseboard.cpp
index 714698a5e29b..c2cbc9b74ab6 100644
--- a/Source/Core/Core/HW/EXI/EXI_DeviceBaseboard.cpp
+++ b/Source/Core/Core/HW/EXI/EXI_DeviceBaseboard.cpp
@@ -5,12 +5,32 @@
 
 #include "Common/Assert.h"
 #include "Common/ChunkFile.h"
+#include "Common/CommonPaths.h"
 #include "Common/CommonTypes.h"
+#include "Common/FileUtil.h"
+#include "Common/IOFile.h"
 #include "Common/Logging/Log.h"
 
 namespace ExpansionInterface
 {
-CEXIBaseboard::CEXIBaseboard() = default;
+CEXIBaseboard::CEXIBaseboard()
+{
+  EEPROM_filename = File::GetUserPath(D_TRIUSER_IDX) + "EEPROM.raw";
+  if (File::Exists(EEPROM_filename))
+  {
+    m_EEPROM = std::make_unique<File::IOFile>(EEPROM_filename, "rb+");
+  }
+  else
+  {
+    m_EEPROM = std::make_unique<File::IOFile>(EEPROM_filename, "wb+");
+  }
+}
+
+CEXIBaseboard::~CEXIBaseboard()
+{
+  m_EEPROM->Close();
+  File::Delete(EEPROM_filename);
+}
 
 void CEXIBaseboard::SetCS(int cs)
 {
diff --git a/Source/Core/Core/HW/EXI/EXI_DeviceBaseboard.h b/Source/Core/Core/HW/EXI/EXI_DeviceBaseboard.h
index 687ff110cc5a..6e2cc9ff01db 100644
--- a/Source/Core/Core/HW/EXI/EXI_DeviceBaseboard.h
+++ b/Source/Core/Core/HW/EXI/EXI_DeviceBaseboard.h
@@ -5,6 +5,8 @@
 
 #include "Core/HW/EXI/EXI_Device.h"
 
+#include "Common/IOFile.h"
+
 class PointerWrap;
 
 namespace ExpansionInterface
@@ -13,12 +15,16 @@ class CEXIBaseboard : public IEXIDevice
 {
 public:
   CEXIBaseboard();
+  ~CEXIBaseboard();
   void SetCS(int CS) override;
   bool IsPresent() const override;
   bool IsInterruptSet();
   void DoState(PointerWrap& p) override;
 
 private:
+  std::string EEPROM_filename;
+  std::unique_ptr<File::IOFile> m_EEPROM;
+
   // STATE_TO_SAVE
   bool m_have_irq;
   u32 m_position = 0;
diff --git a/Source/Core/UICommon/UICommon.cpp b/Source/Core/UICommon/UICommon.cpp
index 5c34c6b90294..3532e7d16eab 100644
--- a/Source/Core/UICommon/UICommon.cpp
+++ b/Source/Core/UICommon/UICommon.cpp
@@ -196,6 +196,7 @@ void CreateDirectories()
   File::CreateFullPath(File::GetUserPath(D_SHADERS_IDX));
   File::CreateFullPath(File::GetUserPath(D_SHADERS_IDX) + ANAGLYPH_DIR DIR_SEP);
   File::CreateFullPath(File::GetUserPath(D_STATESAVES_IDX));
+  File::CreateFullPath(File::GetUserPath(D_TRIUSER_IDX));
 #ifndef ANDROID
   File::CreateFullPath(File::GetUserPath(D_THEMES_IDX));
   File::CreateFullPath(File::GetUserPath(D_STYLES_IDX));