diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/NesBoardBase.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/NesBoardBase.cs
index 6633deacf0..1f403cb9b4 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/NesBoardBase.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/NesBoardBase.cs
@@ -32,7 +32,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 		public virtual void ClockCpu() { }
 		public virtual void AtVsyncNmi() { }
 
-		public NES.CartInfo Cart => NES.cart;
+		public CartInfo Cart => NES.cart;
 		public NES NES { get; set; }
 
 		//this is set to true when SyncState is called, so that we know the base class SyncState was used
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/CartInfo.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/CartInfo.cs
new file mode 100644
index 0000000000..904aa58f00
--- /dev/null
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/CartInfo.cs
@@ -0,0 +1,44 @@
+using System.Collections.Generic;
+using BizHawk.Emulation.Common;
+
+namespace BizHawk.Emulation.Cores.Nintendo.NES
+{
+	/// <summary>
+	/// All information necessary for a board to set itself up
+	/// </summary>
+	public class CartInfo
+	{
+		public GameInfo DB_GameInfo;
+		public string name;
+
+		public int trainer_size;
+		public int chr_size;
+		public int prg_size;
+		public int wram_size, vram_size;
+		public byte pad_h, pad_v;
+		public bool wram_battery;
+		public bool bad;
+		/// <summary>in [0,3]; combination of bits 0 and 3 of flags6.  try not to use; will be null for bootgod-identified roms always</summary>
+		public int? inesmirroring;
+
+		public string board_type;
+		public string pcb;
+
+		public string sha1;
+		public string system;
+		public List<string> chips = new List<string>();
+
+		public string palette; // Palette override for VS system
+		public byte vs_security; // for VS system games that do a ppu dheck
+
+		public override string ToString() => string.Join(",",
+			$"pr={prg_size}",
+			$"ch={chr_size}",
+			$"wr={wram_size}",
+			$"vr={vram_size}",
+			$"ba={(wram_battery ? 1 : 0)}",
+			$"pa={pad_h}|{pad_v}",
+			$"brd={board_type}",
+			$"sys={system}");
+	}
+}
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.BoardSystem.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.BoardSystem.cs
index f1f1c56e7a..c394361872 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.BoardSystem.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.BoardSystem.cs
@@ -106,45 +106,6 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 			INESBoardImplementors.AddRange(normalPriority);
 		}
 
-		/// <summary>
-		/// All information necessary for a board to set itself up
-		/// </summary>
-		public class CartInfo
-		{
-			public GameInfo DB_GameInfo;
-			public string name;
-
-			public int trainer_size;
-			public int chr_size;
-			public int prg_size;
-			public int wram_size, vram_size;
-			public byte pad_h, pad_v;
-			public bool wram_battery;
-			public bool bad;
-			/// <summary>in [0,3]; combination of bits 0 and 3 of flags6.  try not to use; will be null for bootgod-identified roms always</summary>
-			public int? inesmirroring;
-
-			public string board_type;
-			public string pcb;
-
-			public string sha1;
-			public string system;
-			public List<string> chips = new List<string>();
-
-			public string palette; // Palette override for VS system
-			public byte vs_security; // for VS system games that do a ppu dheck
-
-			public override string ToString() => string.Join(",",
-				$"pr={prg_size}",
-				$"ch={chr_size}",
-				$"wr={wram_size}",
-				$"vr={vram_size}",
-				$"ba={(wram_battery ? 1 : 0)}",
-				$"pa={pad_h}|{pad_v}",
-				$"brd={board_type}",
-				$"sys={system}");
-		}
-
 		/// <summary>
 		/// finds a board class which can handle the provided cart
 		/// </summary>
diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Unif.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Unif.cs
index c9aaa083f4..02dede9fb1 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Unif.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Unif.cs
@@ -15,7 +15,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 	/// </summary>
 	public class Unif
 	{
-		NES.CartInfo ci = new NES.CartInfo();
+		CartInfo ci = new CartInfo();
 		byte[] prgrom;
 		byte[] chrrom;
 
@@ -108,7 +108,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 				chrrom = null;
 		}
 
-		public NES.CartInfo CartInfo => ci;
+		public CartInfo CartInfo => ci;
 		public byte[] PRG => prgrom;
 		public byte[] CHR => chrrom;
 	}