diff --git a/src/boards/datalatch.c b/src/boards/datalatch.c
index c3f2363..e3b9e7d 100644
--- a/src/boards/datalatch.c
+++ b/src/boards/datalatch.c
@@ -628,3 +628,13 @@ void Mapper415_Init(CartInfo *info) {
 	Latch_Init(info, Mapper415_Sync, 0, 0x8000, 0xFFFF, 0, 0);
 	info->Power = M415Power;
 }
+
+static void Mapper481_Sync(void) {
+	setprg16(0x8000, latche >>4 &~7 | latche &7);
+	setprg16(0xc000, latche >>4     |         7);
+	setchr8(0);
+}
+
+void Mapper481_Init(CartInfo *info) {
+	Latch_Init(info, Mapper481_Sync, 0, 0x8000, 0xFFFF, 1, 0);
+}
diff --git a/src/ines.c b/src/ines.c
index 01e7901..4e5b287 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -846,6 +846,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "47-2",                 	467, Mapper467_Init         )
 	INES_BOARD( "BlazePro CPLD",           	468, Mapper468_Init         )
 	INES_BOARD( "INX_007T_V01",		470, INX_007T_Init          )
+	INES_BOARD( "045N",          		481, Mapper481_Init         )
 	INES_BOARD( "Yhc-000",                  500, Mapper500_Init         )
 	INES_BOARD( "Yhc-001",                  501, Mapper501_Init         )
 	INES_BOARD( "Yhc-002",                  502, Mapper502_Init         )
diff --git a/src/ines.h b/src/ines.h
index a5e72e9..6f75f1d 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -357,6 +357,7 @@ void Mapper466_Init(CartInfo *);
 void Mapper467_Init(CartInfo *);
 void Mapper468_Init(CartInfo *);
 void INX_007T_Init(CartInfo* info); /* Mapper 470 */
+void Mapper481_Init(CartInfo *);
 void Mapper500_Init(CartInfo *);
 void Mapper501_Init(CartInfo *);
 void Mapper502_Init(CartInfo *);