diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MatteryDeviceBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MatteryDeviceBlockEntity.kt
index 878120d13..a30caeb8a 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MatteryDeviceBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MatteryDeviceBlockEntity.kt
@@ -223,6 +223,7 @@ abstract class MatteryDeviceBlockEntity(blockEntityType: BlockEntityType<*>, blo
 	inner class ConfigurableItemHandler(
 		val input: IItemHandler? = null,
 		val output: IItemHandler? = null,
+		inputOutput: IItemHandler? = null,
 		val battery: IItemHandler? = null,
 		val frontDefault: ItemHandlerMode = determineDefaultMode(input, output, battery, RelativeSide.FRONT),
 		val backDefault: ItemHandlerMode = determineDefaultMode(input, output, battery, RelativeSide.BACK),
@@ -236,6 +237,9 @@ abstract class MatteryDeviceBlockEntity(blockEntityType: BlockEntityType<*>, blo
 		val inputOutput: IItemHandler?
 
 		init {
+			if ((input != null || output != null) && inputOutput != null)
+				throw IllegalArgumentException("Either specify input or/and output separately, or specify inputOutput")
+
 			val builder = ImmutableSet.Builder<ItemHandlerMode>()
 
 			builder.add(ItemHandlerMode.DISABLED)
@@ -243,20 +247,28 @@ abstract class MatteryDeviceBlockEntity(blockEntityType: BlockEntityType<*>, blo
 			if (input != null) builder.add(ItemHandlerMode.INPUT)
 			if (output != null) builder.add(ItemHandlerMode.OUTPUT)
 			if (input != null && output != null) builder.add(ItemHandlerMode.INPUT_OUTPUT)
+
+			if (inputOutput != null) {
+				builder.add(ItemHandlerMode.INPUT)
+				builder.add(ItemHandlerMode.OUTPUT)
+				builder.add(ItemHandlerMode.INPUT_OUTPUT)
+			}
+
 			if (battery != null) builder.add(ItemHandlerMode.BATTERY)
 
 			possibleViews = builder.build()
 
 			if (input != null && output != null) {
-				inputOutput = CombinedItemHandler(input, output)
+				this.inputOutput = CombinedItemHandler(input, output)
 			} else {
-				inputOutput = null
+				this.inputOutput = inputOutput
 			}
 
 			val caps = ArrayList<IItemHandler>()
 
 			if (input != null) caps.add(input)
 			if (output != null) caps.add(output)
+			if (inputOutput != null) caps.add(inputOutput)
 			if (battery != null) caps.add(battery)
 
 			sideless = UnmodifiableItemHandler(CombinedItemHandler(caps))
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/ItemRepairerBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/ItemRepairerBlockEntity.kt
index 9c423d202..4ad22dacc 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/ItemRepairerBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/ItemRepairerBlockEntity.kt
@@ -71,7 +71,7 @@ class ItemRepairerBlockEntity(blockPos: BlockPos, blockState: BlockState) : Matt
 
 	val energyConfig = ConfigurableEnergy(energy)
 	val itemConfig = ConfigurableItemHandler(
-		input = repairContainer.handler(object : HandlerFilter {
+		inputOutput = repairContainer.handler(object : HandlerFilter {
 			override fun canInsert(slot: Int, stack: ItemStack): Boolean {
 				if (!stack.isRepairable || !stack.isDamaged) {
 					return false
@@ -95,16 +95,6 @@ class ItemRepairerBlockEntity(blockPos: BlockPos, blockState: BlockState) : Matt
 					}.hasMatterValue
 			}
 
-			override fun canExtract(slot: Int, amount: Int, stack: ItemStack): Boolean {
-				return false
-			}
-		}),
-
-		output = repairContainer.handler(object : HandlerFilter {
-			override fun canInsert(slot: Int, stack: ItemStack): Boolean {
-				return false
-			}
-
 			override fun canExtract(slot: Int, amount: Int, stack: ItemStack): Boolean {
 				return progressPerTick <= 0.0 || matterPerTick <= Decimal.ZERO
 			}