diff --git a/src/boards/611.c b/src/boards/611.c
new file mode 100644
index 0000000..eb0c7aa
--- /dev/null
+++ b/src/boards/611.c
@@ -0,0 +1,37 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2026 NewRisingSun
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "mapinc.h"
+#include "asic_latch.h"
+
+static void sync () {
+	if ((Latch_address &0x0C) == 0x0C)
+		setprg32(0x8000, Latch_address >>3);
+	else {
+		setprg16(0x8000, Latch_address >>2);
+		setprg16(0xC000, Latch_address >>2);
+	}
+	setchr8(Latch_address >>1 &0x04 | Latch_address &0x03);
+}
+
+void Mapper611_Init (CartInfo *info) {
+	Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
+	info->Reset = Latch_clear;
+}
diff --git a/src/ines.c b/src/ines.c
index 932c7e2..fa0127a 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -1028,6 +1028,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "A-23",                     608, Mapper608_Init         )
 	INES_BOARD( "63-100",                   609, Mapper609_Init         )
 	INES_BOARD( "J-2042",                   610, Mapper610_Init         )
+	INES_BOARD( "T-124/43-117/831049",      611, Mapper611_Init         )
 INES_BOARD_END()
 
 static uint32 iNES_get_mapper_id(void)
diff --git a/src/ines.h b/src/ines.h
index aa070f3..c8204bb 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -497,6 +497,7 @@ void Mapper607_Init(CartInfo *);
 void Mapper608_Init(CartInfo *);
 void Mapper609_Init(CartInfo *);
 void Mapper610_Init(CartInfo *);
+void Mapper611_Init(CartInfo *);
 void FFE_Init(CartInfo *);
 
 #endif