diff --git a/src/boards/595.c b/src/boards/595.c
new file mode 100644
index 0000000..b98267f
--- /dev/null
+++ b/src/boards/595.c
@@ -0,0 +1,70 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2025 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 "cartram.h"
+#include "flashrom.h"
+
+static uint8 reg;
+
+static void sync () {
+	setprg8r(0x10, 0x6000, 0);
+	setprg16(0x8000, reg &0x1F);
+	setprg16(0xC000, 0xFF);
+	setchr8(0);
+}
+
+static DECLFW (writeFlash) {
+	flashrom_write(A &0x3FFF | (Page[A >>11] +A -PRGptr[0]) &~0x3FFF, V);
+}
+
+static DECLFW (writeReg) {
+	reg = reg >>1 | V <<4 &0x10;
+	sync();
+}
+
+static void power () {
+	SetReadHandler(0x6000, 0x7FFF, CartBR);
+	SetReadHandler(0x8000, 0xFFFF, flashrom_read);
+	SetWriteHandler(0x6000, 0x7FFF, CartBW);
+	SetWriteHandler(0x8000, 0xBFFF, writeFlash);
+	SetWriteHandler(0xC000, 0xFFFF, writeReg);
+	reg = 0;
+	sync();
+}
+
+static void stateRestore (int version) {
+	sync();
+}
+
+void Mapper595_Init (CartInfo *info) {
+	WRAM_init(info, 8);
+	flashrom_init (0xBF, 0xB4, 4096, 0x5555, 0x2AAA, 0x7FFF);
+	info->Reset = power;
+	info->Power = power;
+	MapIRQHook =flashrom_cpuCycle;
+	GameStateRestore = stateRestore;
+	AddExState(&reg, 1, 0, "REGS");
+	if (info->battery) {
+		info->SaveGame[0] = ROM;
+		info->SaveGameLen[0] = PRGsize[0];
+		AddExState(ROM, PRGsize[0], 0, "FLAS");
+	}
+}
diff --git a/src/ines.c b/src/ines.c
index bf558b4..0d0b35f 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -1016,6 +1016,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "07027/810543",             591, Mapper591_Init         )
 	INES_BOARD( "8-in-1 1991",              592, Mapper592_Init         )
 	INES_BOARD( "Rinco FSG2",               594, Mapper594_Init         )
+	INES_BOARD( "4MROM-512",                595, Mapper595_Init         )
 INES_BOARD_END()
 
 static uint32 iNES_get_mapper_id(void)
diff --git a/src/ines.h b/src/ines.h
index 396164c..2caf764 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -483,6 +483,7 @@ void Mapper590_Init(CartInfo *);
 void Mapper591_Init(CartInfo *);
 void Mapper592_Init(CartInfo *);
 void Mapper594_Init(CartInfo *);
+void Mapper595_Init(CartInfo *);
 
 void FFE_Init(CartInfo *);