diff --git a/FirmwareGen/DeviceProfiles/EpsilonHalfSplit128GB.cs b/FirmwareGen/DeviceProfiles/EpsilonHalfSplit128GB.cs
index 9dc970d..13f6b6e 100644
--- a/FirmwareGen/DeviceProfiles/EpsilonHalfSplit128GB.cs
+++ b/FirmwareGen/DeviceProfiles/EpsilonHalfSplit128GB.cs
@@ -108,5 +108,10 @@ public Guid GetDiskGuid()
         {
             return new Guid("efa6243a-085f-e745-f2ce-54d39ef34351");
         }
+
+        public ulong GetCustomSplittingAndroidDesiredSpace()
+        {
+            return 4_294_967_296;
+        }
     }
 }
diff --git a/FirmwareGen/DeviceProfiles/EpsilonHalfSplit256GB.cs b/FirmwareGen/DeviceProfiles/EpsilonHalfSplit256GB.cs
index 8e2fd61..e3fc926 100644
--- a/FirmwareGen/DeviceProfiles/EpsilonHalfSplit256GB.cs
+++ b/FirmwareGen/DeviceProfiles/EpsilonHalfSplit256GB.cs
@@ -108,5 +108,10 @@ public Guid GetDiskGuid()
         {
             return new Guid("efa6243a-085f-e745-f2ce-54d39ef34351");
         }
+
+        public ulong GetCustomSplittingAndroidDesiredSpace()
+        {
+            return 4_294_967_296;
+        }
     }
 }
diff --git a/FirmwareGen/DeviceProfiles/EpsilonMaximizedForWindows.cs b/FirmwareGen/DeviceProfiles/EpsilonMaximizedForWindows.cs
index 2bc86cb..c312cbc 100644
--- a/FirmwareGen/DeviceProfiles/EpsilonMaximizedForWindows.cs
+++ b/FirmwareGen/DeviceProfiles/EpsilonMaximizedForWindows.cs
@@ -108,5 +108,10 @@ public Guid GetDiskGuid()
         {
             return new Guid("efa6243a-085f-e745-f2ce-54d39ef34351");
         }
+
+        public ulong GetCustomSplittingAndroidDesiredSpace()
+        {
+            return 4_294_967_296;
+        }
     }
 }
diff --git a/FirmwareGen/DeviceProfiles/MTP8150MaximizedForWindows.cs b/FirmwareGen/DeviceProfiles/MTP8150MaximizedForWindows.cs
index 058a24b..9ede845 100644
--- a/FirmwareGen/DeviceProfiles/MTP8150MaximizedForWindows.cs
+++ b/FirmwareGen/DeviceProfiles/MTP8150MaximizedForWindows.cs
@@ -160,5 +160,10 @@ public Guid GetDiskGuid()
         {
             return new Guid("efa6243a-085f-e745-f2ce-54d39ef34351");
         }
+
+        public ulong GetCustomSplittingAndroidDesiredSpace()
+        {
+            return 4_294_967_296;
+        }
     }
 }
diff --git a/FirmwareGen/DeviceProfiles/ZetaHalfSplit128GB.cs b/FirmwareGen/DeviceProfiles/ZetaHalfSplit128GB.cs
index 0075a2d..8683acf 100644
--- a/FirmwareGen/DeviceProfiles/ZetaHalfSplit128GB.cs
+++ b/FirmwareGen/DeviceProfiles/ZetaHalfSplit128GB.cs
@@ -127,5 +127,10 @@ public Guid GetDiskGuid()
         {
             return new Guid("efa6243a-085f-e745-f2ce-54d39ef34351");
         }
+
+        public ulong GetCustomSplittingAndroidDesiredSpace()
+        {
+            return 4_294_967_296;
+        }
     }
 }
diff --git a/FirmwareGen/DeviceProfiles/ZetaHalfSplit256GB.cs b/FirmwareGen/DeviceProfiles/ZetaHalfSplit256GB.cs
index 412b949..3012344 100644
--- a/FirmwareGen/DeviceProfiles/ZetaHalfSplit256GB.cs
+++ b/FirmwareGen/DeviceProfiles/ZetaHalfSplit256GB.cs
@@ -127,5 +127,10 @@ public Guid GetDiskGuid()
         {
             return new Guid("efa6243a-085f-e745-f2ce-54d39ef34351");
         }
+
+        public ulong GetCustomSplittingAndroidDesiredSpace()
+        {
+            return 4_294_967_296;
+        }
     }
 }
diff --git a/FirmwareGen/DeviceProfiles/ZetaHalfSplit512GB.cs b/FirmwareGen/DeviceProfiles/ZetaHalfSplit512GB.cs
index 33b644d..76244a8 100644
--- a/FirmwareGen/DeviceProfiles/ZetaHalfSplit512GB.cs
+++ b/FirmwareGen/DeviceProfiles/ZetaHalfSplit512GB.cs
@@ -127,5 +127,10 @@ public Guid GetDiskGuid()
         {
             return new Guid("efa6243a-085f-e745-f2ce-54d39ef34351");
         }
+
+        public ulong GetCustomSplittingAndroidDesiredSpace()
+        {
+            return 4_294_967_296;
+        }
     }
 }
diff --git a/FirmwareGen/DeviceProfiles/ZetaMaximizedForWindows.cs b/FirmwareGen/DeviceProfiles/ZetaMaximizedForWindows.cs
index c82fb27..d5fa619 100644
--- a/FirmwareGen/DeviceProfiles/ZetaMaximizedForWindows.cs
+++ b/FirmwareGen/DeviceProfiles/ZetaMaximizedForWindows.cs
@@ -127,5 +127,10 @@ public Guid GetDiskGuid()
         {
             return new Guid("efa6243a-085f-e745-f2ce-54d39ef34351");
         }
+
+        public ulong GetCustomSplittingAndroidDesiredSpace()
+        {
+            return 4_294_967_296;
+        }
     }
 }
diff --git a/FirmwareGen/IDeviceProfile.cs b/FirmwareGen/IDeviceProfile.cs
index 6624ea8..439b9ec 100644
--- a/FirmwareGen/IDeviceProfile.cs
+++ b/FirmwareGen/IDeviceProfile.cs
@@ -13,6 +13,7 @@ public interface IDeviceProfile
         uint GetDiskSectorSize();
         GPTPartition[] GetPartitionLayout();
         SplittingStrategy GetSplittingStrategy();
+        ulong GetCustomSplittingAndroidDesiredSpace();
         Guid GetDiskGuid();
     }
 }
\ No newline at end of file