diff --git a/src/mame/drivers/rm380z.cpp b/src/mame/drivers/rm380z.cpp
index 1d2d93d6bb7..53baa0c3c7c 100644
--- a/src/mame/drivers/rm380z.cpp
+++ b/src/mame/drivers/rm380z.cpp
@@ -170,12 +170,18 @@ static MACHINE_CONFIG_START( rm380z, rm380z_state )
 	MCFG_GENERIC_KEYBOARD_CB(WRITE8(rm380z_state, keyboard_put))
 MACHINE_CONFIG_END
 
+static MACHINE_CONFIG_DERIVED( rm480z, rm380z )
+	MCFG_SCREEN_MODIFY("screen")
+	MCFG_SCREEN_SIZE(64*8, 24*11)
+	MCFG_SCREEN_VISIBLE_AREA(0, 64*8-1, 0, 24*11-1)
+	MCFG_SCREEN_UPDATE_DRIVER(rm380z_state, screen_update_rm480z)
+MACHINE_CONFIG_END
 
 
 /* ROM definitions */
 
 ROM_START( rm380z34d )
-	ROM_REGION( 0x10000, RM380Z_MAINCPU_TAG, 0 )	
+	ROM_REGION( 0x10000, RM380Z_MAINCPU_TAG, 0 )
 	ROM_LOAD( "cos34d-f.bin", 0x0000, 0x1000, CRC(eb128b40) SHA1(c46f358fb76459987e41750d052995563f2f7d53))
 	// chargen ROM is undumped, afaik
 	ROM_REGION( 0x1680, "chargen", 0 )
@@ -199,15 +205,22 @@ ROM_START( rm380z )
 	// chargen ROM is undumped, afaik
 	ROM_REGION( 0x1680, "chargen", 0 )
 	ROM_LOAD( "ch3.raw", 0x0000, 0x1680, BAD_DUMP CRC(c223622b) SHA1(185ef24896419d7ff46f71a760ac217de3811684))
-	// The characters on the 480Z are very close (or identical) to the 380Z ones
-	//ROM_REGION( 0x2000, "chargen", 0 )
-	//ROM_LOAD( "CG06.BIN", 0x0000, 0x2000, CRC(15d40f7e) SHA1(a7266357eb9be849f77a97ff3013b236c0af8289))
+ROM_END
+
+ROM_START( rm480z )
+	ROM_REGION( 0x10000, RM380Z_MAINCPU_TAG, 0 )
+	ROM_LOAD( "cos40b-m.bin", 0x0000, 0x1000, CRC(1f0b3a5c) SHA1(0b29cb2a3b7eaa3770b34f08c4fd42844f42700f))
+	ROM_LOAD( "cos40b-m_f600-f9ff.bin", 0x1000, 0x400, CRC(e3397d9d) SHA1(490a0c834b0da392daf782edc7d51ca8f0668b1a))
+	ROM_LOAD( "cos40b-m_1c00-1dff.bin", 0x1400, 0x200, CRC(0f759f44) SHA1(9689c1c1faa62c56def999cbedbbb0c8d928dcff))
+	ROM_REGION( 0x2000, "chargen", 0 )
+	ROM_LOAD( "cg06.bin", 0x0000, 0x2000, CRC(15d40f7e) SHA1(a7266357eb9be849f77a97ff3013b236c0af8289) )
 ROM_END
 
 
 /* Driver */
 /*   YEAR  NAME        PARENT    COMPAT   MACHINE     INPUT     CLASS            INIT        COMPANY                 FULLNAME */
-COMP(1978, rm380z,       0,        0,     rm380z,     rm380z,   rm380z_state,    rm380z,     "Research Machines",    "RM-380Z, COS 4.0B", MACHINE_NO_SOUND_HW)
+COMP(1978, rm380z,      0,         0,     rm380z,     rm380z,   rm380z_state,    rm380z,     "Research Machines",    "RM-380Z, COS 4.0B", MACHINE_NO_SOUND_HW)
 COMP(1978, rm380z34d,   rm380z,    0,     rm380z,     rm380z,   rm380z_state,    rm380z34d,  "Research Machines",    "RM-380Z, COS 3.4D", MACHINE_BTANB_FLAGS)
 COMP(1978, rm380z34e,   rm380z,    0,     rm380z,     rm380z,   rm380z_state,    rm380z34e,  "Research Machines",    "RM-380Z, COS 3.4E", MACHINE_BTANB_FLAGS)
+COMP(1981, rm480z,      rm380z,    0,     rm480z,     rm380z,   rm380z_state,    rm380z34e,  "Research Machines",    "LINK RM-480Z", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW)
 
diff --git a/src/mame/includes/rm380z.h b/src/mame/includes/rm380z.h
index bc829b4dbe5..763eb043117 100644
--- a/src/mame/includes/rm380z.h
+++ b/src/mame/includes/rm380z.h
@@ -60,12 +60,9 @@ private:
 
 	int writenum;
 
-protected:
 	virtual void machine_reset() override;
 	virtual void machine_start() override;
 
-public:
-
 	uint8_t m_port0;
 	uint8_t m_port0_mask;
 	uint8_t m_port0_kbd;
@@ -96,6 +93,7 @@ public:
 	required_device<floppy_connector> m_floppy0;
 	required_device<floppy_connector> m_floppy1;
 
+public:
 	rm380z_state(const machine_config &mconfig, device_type type, const char *tag)
 		: driver_device(mconfig, type, tag),
 		m_maincpu(*this, RM380Z_MAINCPU_TAG),
@@ -136,6 +134,7 @@ public:
 	void config_memory_map();
 	void update_screen(bitmap_ind16 &bitmap);
 	uint32_t screen_update_rm380z(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+	uint32_t screen_update_rm480z(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
 	TIMER_CALLBACK_MEMBER(static_vblank_timer);
 };
 
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 889a89f8470..7c7db655643 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -31705,6 +31705,7 @@ rltennis                        // (c) 1993 TCH
 rm380z                          //
 rm380z34d                       //
 rm380z34e                       //
+rm480z                          //
 
 @source:rmhaihai.cpp
 rmhaihai                        // (c) 1985 Alba
diff --git a/src/mame/video/rm380z.cpp b/src/mame/video/rm380z.cpp
index 23da34017d7..329dcd97ad5 100644
--- a/src/mame/video/rm380z.cpp
+++ b/src/mame/video/rm380z.cpp
@@ -404,3 +404,40 @@ void rm380z_state::update_screen(bitmap_ind16 &bitmap)
 		}
 	}
 }
+
+// This needs the attributes etc from above to be added
+uint32_t rm380z_state::screen_update_rm480z(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+	uint8_t *chargen = memregion("chargen")->base();
+	uint8_t y,ra,chr,gfx;
+	uint16_t sy=0,ma=0,x;
+
+	for (y = 0; y < RM380Z_SCREENROWS; y++)
+	{
+		for (ra = 0; ra < 11; ra++)
+		{
+			uint16_t *p = &bitmap.pix16(sy++);
+
+			for (x = ma; x < ma + 64; x++)
+			{
+				gfx = 0;
+				if (ra < 10)
+				{
+					chr = m_vramchars[x];
+					gfx = chargen[(chr<<4) | ra ];
+				}
+				/* Display a scanline of a character */
+				*p++ = BIT(gfx, 7);
+				*p++ = BIT(gfx, 6);
+				*p++ = BIT(gfx, 5);
+				*p++ = BIT(gfx, 4);
+				*p++ = BIT(gfx, 3);
+				*p++ = BIT(gfx, 2);
+				*p++ = BIT(gfx, 1);
+				*p++ = BIT(gfx, 0);
+			}
+		}
+		ma+=64;
+	}
+	return 0;
+}