diff --git a/src/main/java/li/cil/oc2/common/bus/device/item/AbstractItemRPCDevice.java b/src/main/java/li/cil/oc2/common/bus/device/item/AbstractItemRPCDevice.java
index 0cfb1c66..748369c4 100644
--- a/src/main/java/li/cil/oc2/common/bus/device/item/AbstractItemRPCDevice.java
+++ b/src/main/java/li/cil/oc2/common/bus/device/item/AbstractItemRPCDevice.java
@@ -2,17 +2,20 @@
 
 package li.cil.oc2.common.bus.device.item;
 
+import li.cil.oc2.api.bus.device.DeviceContainer;
 import li.cil.oc2.api.bus.device.ItemDevice;
 import li.cil.oc2.api.bus.device.object.ObjectDevice;
 import li.cil.oc2.api.bus.device.rpc.RPCDevice;
 import li.cil.oc2.api.bus.device.rpc.RPCMethodGroup;
 import li.cil.oc2.common.bus.device.util.IdentityProxy;
 import net.minecraft.world.item.ItemStack;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
 
 public abstract class AbstractItemRPCDevice extends IdentityProxy<ItemStack> implements RPCDevice, ItemDevice {
     private final ObjectDevice device;
+    private DeviceContainer container;
 
     ///////////////////////////////////////////////////////////////////
 
@@ -23,6 +26,11 @@ public abstract class AbstractItemRPCDevice extends IdentityProxy<ItemStack> imp
 
     ///////////////////////////////////////////////////////////////////
 
+    @Override
+    public void setDeviceContainer(@Nullable final DeviceContainer container) {
+        this.container = container;
+    }
+
     @Override
     public List<String> getTypeNames() {
         return device.getTypeNames();
@@ -33,18 +41,11 @@ public abstract class AbstractItemRPCDevice extends IdentityProxy<ItemStack> imp
         return device.getMethodGroups();
     }
 
-    @Override
-    public void mount() {
-        device.mount();
-    }
+    ///////////////////////////////////////////////////////////////////
 
-    @Override
-    public void unmount() {
-        device.unmount();
-    }
-
-    @Override
-    public void dispose() {
-        device.dispose();
+    protected void setChanged() {
+        if (container != null) {
+            container.setChanged();
+        }
     }
 }
diff --git a/src/main/java/li/cil/oc2/common/bus/device/item/BlockOperationsModuleDevice.java b/src/main/java/li/cil/oc2/common/bus/device/item/BlockOperationsModuleDevice.java
index 119dc6b3..c79423f1 100644
--- a/src/main/java/li/cil/oc2/common/bus/device/item/BlockOperationsModuleDevice.java
+++ b/src/main/java/li/cil/oc2/common/bus/device/item/BlockOperationsModuleDevice.java
@@ -213,6 +213,7 @@ public final class BlockOperationsModuleDevice extends AbstractItemRPCDevice {
 
     private void beginCooldown() {
         lastOperation = entity.level.getGameTime();
+        setChanged();
     }
 
     private boolean isOnCooldown() {
diff --git a/src/main/java/li/cil/oc2/common/bus/device/item/RedstoneInterfaceCardItemDevice.java b/src/main/java/li/cil/oc2/common/bus/device/item/RedstoneInterfaceCardItemDevice.java
index b558fbdb..fc9c4fb1 100644
--- a/src/main/java/li/cil/oc2/common/bus/device/item/RedstoneInterfaceCardItemDevice.java
+++ b/src/main/java/li/cil/oc2/common/bus/device/item/RedstoneInterfaceCardItemDevice.java
@@ -120,6 +120,7 @@ public final class RedstoneInterfaceCardItemDevice extends AbstractItemRPCDevice
         }
 
         output[index] = clampedValue;
+        setChanged();
 
         final Direction direction = HorizontalBlockUtils.toGlobal(blockEntity.getBlockState(), side);
         if (direction != null) {
diff --git a/src/main/java/li/cil/oc2/common/bus/device/item/SoundCardItemDevice.java b/src/main/java/li/cil/oc2/common/bus/device/item/SoundCardItemDevice.java
index c6fcb900..63c84fbb 100644
--- a/src/main/java/li/cil/oc2/common/bus/device/item/SoundCardItemDevice.java
+++ b/src/main/java/li/cil/oc2/common/bus/device/item/SoundCardItemDevice.java
@@ -53,7 +53,9 @@ public final class SoundCardItemDevice extends AbstractItemRPCDevice {
             if (gameTime < gameTimeCooldownExpiresAt) {
                 return;
             }
+
             gameTimeCooldownExpiresAt = gameTime + COOLDOWN_IN_TICKS;
+            setChanged();
 
             final SoundEvent soundEvent = ForgeRegistries.SOUND_EVENTS.getValue(new ResourceLocation(name));
             if (soundEvent == null) throw new IllegalArgumentException("Sound not found.");