diff --git a/src/main/java/li/cil/oc2/common/Constants.java b/src/main/java/li/cil/oc2/common/Constants.java
index b53bf4d8..24dc5750 100644
--- a/src/main/java/li/cil/oc2/common/Constants.java
+++ b/src/main/java/li/cil/oc2/common/Constants.java
@@ -38,6 +38,12 @@ public final class Constants {
     public static final String HARD_DRIVE_ITEM_NAME = "hard_drive";
     public static final String REDSTONE_INTERFACE_CARD_NAME = "redstone_interface_card";
     public static final String NETWORK_INTERFACE_CARD_NAME = "network_interface_card";
+    public static final String CONTROL_UNIT_ITEM_NAME = "control_unit";
+    public static final String ARITHMETIC_LOGIC_UNIT_ITEM_NAME = "arithmetic_logic_unit";
+    public static final String MICROCHIP_ITEM_NAME = "microchip";
+    public static final String DISK_PLATTER_ITEM_NAME = "disk_platter";
+    public static final String TRANSISTOR_ITEM_NAME = "transistor";
+    public static final String PCB_ITEM_NAME = "pcb";
 
     ///////////////////////////////////////////////////////////////////
 
diff --git a/src/main/java/li/cil/oc2/common/item/Items.java b/src/main/java/li/cil/oc2/common/item/Items.java
index 841941d0..6402a6d0 100644
--- a/src/main/java/li/cil/oc2/common/item/Items.java
+++ b/src/main/java/li/cil/oc2/common/item/Items.java
@@ -36,6 +36,12 @@ public final class Items {
     public static final RegistryObject<Item> FLASH_MEMORY_ITEM = register(Constants.FLASH_MEMORY_ITEM_NAME, FlashMemoryItem::new, new Item.Properties());
     public static final RegistryObject<Item> REDSTONE_INTERFACE_CARD_ITEM = register(Constants.REDSTONE_INTERFACE_CARD_NAME);
     public static final RegistryObject<Item> NETWORK_INTERFACE_CARD_ITEM = register(Constants.NETWORK_INTERFACE_CARD_NAME);
+    public static final RegistryObject<Item> CONTROL_UNIT_ITEM = register(Constants.CONTROL_UNIT_ITEM_NAME, Item::new);
+    public static final RegistryObject<Item> ARITHMETIC_LOGIC_UNIT_ITEM = register(Constants.ARITHMETIC_LOGIC_UNIT_ITEM_NAME, Item::new);
+    public static final RegistryObject<Item> MICROCHIP_ITEM = register(Constants.MICROCHIP_ITEM_NAME, Item::new);
+    public static final RegistryObject<Item> DISK_PLATTER_ITEM = register(Constants.DISK_PLATTER_ITEM_NAME, Item::new);
+    public static final RegistryObject<Item> TRANSISTOR_ITEM = register(Constants.TRANSISTOR_ITEM_NAME, Item::new);
+    public static final RegistryObject<Item> PCB_ITEM = register(Constants.PCB_ITEM_NAME, Item::new);
 
     ///////////////////////////////////////////////////////////////////