diff --git a/assets/opencomputers/lang/de_DE.lang b/assets/opencomputers/lang/de_DE.lang
index fb472408f..1d2aec421 100644
--- a/assets/opencomputers/lang/de_DE.lang
+++ b/assets/opencomputers/lang/de_DE.lang
@@ -75,6 +75,8 @@ oc:gui.Robot.TurnOn=Einschalten
 oc:container.Adapter=Adapter
 oc:container.Case=Computer
 oc:container.DiskDrive=Diskettenlaufwerk
+oc:container.Server=Server
+oc:container.ServerRack=Serverschrank
 
 # Item / Block Tooltips
 oc:tooltip.Acid=Eine hochgiftige Möchtegernflüssigkeit, wird üblicherweise nur von gewissen Piraten konsumiert. Dank ihrer korrosiven Eigenschaften ideal zum Bedrucken von Leiterplatten geeignet.
diff --git a/assets/opencomputers/lang/en_US.lang b/assets/opencomputers/lang/en_US.lang
index 1e8933334..f2ed85192 100644
--- a/assets/opencomputers/lang/en_US.lang
+++ b/assets/opencomputers/lang/en_US.lang
@@ -75,6 +75,8 @@ oc:gui.Robot.TurnOn=Turn on
 oc:container.Adapter=Adapter
 oc:container.Case=Computer
 oc:container.DiskDrive=Disk Drive
+oc:container.Server=Server
+oc:container.ServerRack=Server Rack
 
 # Item / Block Tooltips
 oc:tooltip.Acid=A highly toxic pseudo-liquid, usually only consumed by certain pirates. Thanks to its corrosive nature it is perfectly suited for etching circuit boards.
diff --git a/assets/opencomputers/textures/gui/server.png b/assets/opencomputers/textures/gui/server.png
new file mode 100644
index 000000000..71604995a
Binary files /dev/null and b/assets/opencomputers/textures/gui/server.png differ
diff --git a/li/cil/oc/api/driver/Slot.java b/li/cil/oc/api/driver/Slot.java
index 2c7112c2b..dfa015077 100644
--- a/li/cil/oc/api/driver/Slot.java
+++ b/li/cil/oc/api/driver/Slot.java
@@ -42,6 +42,15 @@ public enum Slot {
      */
     Memory,
 
+    /**
+     * CPU slots, used in servers.
+     * <p/>
+     * Components should usually not implement this slot type, unless you want
+     * to provide an alternative CPU (that will have the same effect as the
+     * default one, so I don't think that would make a lot of sense).
+     */
+    Processor,
+
     /**
      * Tool slot in robots (equipment slot).
      * <p/>
diff --git a/li/cil/oc/client/GuiHandler.scala b/li/cil/oc/client/GuiHandler.scala
index 00d9cd6b7..9ccffc4c6 100644
--- a/li/cil/oc/client/GuiHandler.scala
+++ b/li/cil/oc/client/GuiHandler.scala
@@ -1,7 +1,8 @@
 package li.cil.oc.client
 
-import li.cil.oc.common.tileentity
-import li.cil.oc.common.{GuiHandler => CommonGuiHandler, GuiType}
+import li.cil.oc.Items
+import li.cil.oc.common.inventory.ServerInventory
+import li.cil.oc.common.{GuiHandler => CommonGuiHandler, item, tileentity, GuiType}
 import net.minecraft.entity.player.EntityPlayer
 import net.minecraft.world.World
 
@@ -20,6 +21,12 @@ object GuiHandler extends CommonGuiHandler {
         new gui.Rack(player.inventory, rack)
       case screen: tileentity.Screen if id == GuiType.Screen.id =>
         new gui.Screen(screen)
-      case _ => null
+      case _ => Items.multi.subItem(player.getCurrentEquippedItem) match {
+        case Some(server: item.Server) if id == GuiType.Server.id =>
+          new gui.Server(player.inventory, new ServerInventory(player))
+        case Some(terminal: item.Terminal) if id == GuiType.Terminal.id =>
+          null // TODO
+        case _ => null
+      }
     }
 }
diff --git a/li/cil/oc/client/gui/Adapter.scala b/li/cil/oc/client/gui/Adapter.scala
index aeed32f60..885d82e0e 100644
--- a/li/cil/oc/client/gui/Adapter.scala
+++ b/li/cil/oc/client/gui/Adapter.scala
@@ -1,6 +1,5 @@
 package li.cil.oc.client.gui
 
-import li.cil.oc.Settings
 import li.cil.oc.common.container
 import li.cil.oc.common.tileentity
 import net.minecraft.entity.player.InventoryPlayer
@@ -10,7 +9,7 @@ class Adapter(playerInventory: InventoryPlayer, val adapter: tileentity.Adapter)
   override def drawGuiContainerForegroundLayer(mouseX: Int, mouseY: Int) = {
     super.drawGuiContainerForegroundLayer(mouseX, mouseY)
     fontRenderer.drawString(
-      StatCollector.translateToLocal(Settings.namespace + "container.Adapter"),
+      StatCollector.translateToLocal(adapter.getInvName),
       8, 6, 0x404040)
   }
 }
diff --git a/li/cil/oc/client/gui/Case.scala b/li/cil/oc/client/gui/Case.scala
index 9358ec98c..62f81297f 100644
--- a/li/cil/oc/client/gui/Case.scala
+++ b/li/cil/oc/client/gui/Case.scala
@@ -39,7 +39,7 @@ class Case(playerInventory: InventoryPlayer, val computer: tileentity.Case) exte
     super.drawGuiContainerForegroundLayer(mouseX, mouseY)
     GL11.glPushAttrib(0xFFFFFFFF) // Me lazy... prevents NEI render glitch.
     fontRenderer.drawString(
-      StatCollector.translateToLocal(Settings.namespace + "container.Case"),
+      StatCollector.translateToLocal(computer.getInvName),
       8, 6, 0x404040)
     if (powerButton.func_82252_a) {
       val tooltip = new java.util.ArrayList[String]
diff --git a/li/cil/oc/client/gui/DiskDrive.scala b/li/cil/oc/client/gui/DiskDrive.scala
index 3ed4506d6..f5f427c9c 100644
--- a/li/cil/oc/client/gui/DiskDrive.scala
+++ b/li/cil/oc/client/gui/DiskDrive.scala
@@ -1,6 +1,5 @@
 package li.cil.oc.client.gui
 
-import li.cil.oc.Settings
 import li.cil.oc.common.container
 import li.cil.oc.common.tileentity
 import net.minecraft.entity.player.InventoryPlayer
@@ -10,7 +9,7 @@ class DiskDrive(playerInventory: InventoryPlayer, val drive: tileentity.DiskDriv
   override def drawGuiContainerForegroundLayer(mouseX: Int, mouseY: Int) = {
     super.drawGuiContainerForegroundLayer(mouseX, mouseY)
     fontRenderer.drawString(
-      StatCollector.translateToLocal(Settings.namespace + "container.DiskDrive"),
+      StatCollector.translateToLocal(drive.getInvName),
       8, 6, 0x404040)
   }
 }
diff --git a/li/cil/oc/client/gui/DynamicGuiContainer.scala b/li/cil/oc/client/gui/DynamicGuiContainer.scala
index 8088688d6..601186d7e 100644
--- a/li/cil/oc/client/gui/DynamicGuiContainer.scala
+++ b/li/cil/oc/client/gui/DynamicGuiContainer.scala
@@ -32,14 +32,14 @@ abstract class DynamicGuiContainer(container: Container) extends GuiContainer(co
       GL11.glEnable(GL11.GL_LIGHTING)
     }
     RenderState.makeItBlend()
-    GL11.glDepthMask(false)
     super.drawSlotInventory(slot)
-    GL11.glDepthMask(true)
     GL11.glDisable(GL11.GL_BLEND)
     if (!slot.getHasStack) slot match {
       case component: ComponentSlot if component.tierIcon != null =>
         mc.getTextureManager.bindTexture(TextureMap.locationItemsTexture)
+        GL11.glDisable(GL11.GL_DEPTH_TEST)
         drawTexturedModelRectFromIcon(slot.xDisplayPosition, slot.yDisplayPosition, component.tierIcon, 16, 16)
+        GL11.glEnable(GL11.GL_DEPTH_TEST)
       case _ =>
     }
   }
diff --git a/li/cil/oc/client/gui/Rack.scala b/li/cil/oc/client/gui/Rack.scala
index 894257951..80e3a87fb 100644
--- a/li/cil/oc/client/gui/Rack.scala
+++ b/li/cil/oc/client/gui/Rack.scala
@@ -1,6 +1,5 @@
 package li.cil.oc.client.gui
 
-import li.cil.oc.Settings
 import li.cil.oc.common.container
 import li.cil.oc.common.tileentity
 import net.minecraft.entity.player.InventoryPlayer
@@ -10,7 +9,7 @@ class Rack(playerInventory: InventoryPlayer, val rack: tileentity.Rack) extends
   override def drawGuiContainerForegroundLayer(mouseX: Int, mouseY: Int) = {
     super.drawGuiContainerForegroundLayer(mouseX, mouseY)
     fontRenderer.drawString(
-      StatCollector.translateToLocal(Settings.namespace + "container.ServerRack"),
+      StatCollector.translateToLocal(rack.getInvName),
       8, 6, 0x404040)
   }
 }
diff --git a/li/cil/oc/client/gui/Robot.scala b/li/cil/oc/client/gui/Robot.scala
index 0e26e78f6..e89ae1c41 100644
--- a/li/cil/oc/client/gui/Robot.scala
+++ b/li/cil/oc/client/gui/Robot.scala
@@ -6,19 +6,19 @@ import li.cil.oc.client.renderer.MonospaceFontRenderer
 import li.cil.oc.client.renderer.gui.BufferRenderer
 import li.cil.oc.client.{PacketSender => ClientPacketSender}
 import li.cil.oc.common.container
+import li.cil.oc.common.container.ComponentSlot
 import li.cil.oc.common.tileentity
 import li.cil.oc.util.RenderState
 import net.minecraft.client.Minecraft
 import net.minecraft.client.gui.GuiButton
 import net.minecraft.client.gui.inventory.GuiContainer
 import net.minecraft.client.renderer.Tessellator
+import net.minecraft.client.renderer.texture.TextureMap
 import net.minecraft.entity.player.InventoryPlayer
 import net.minecraft.inventory.Slot
 import net.minecraft.util.{StatCollector, ResourceLocation}
 import org.lwjgl.input.Keyboard
 import org.lwjgl.opengl.GL11
-import li.cil.oc.common.container.ComponentSlot
-import net.minecraft.client.renderer.texture.TextureMap
 
 class Robot(playerInventory: InventoryPlayer, val robot: tileentity.Robot) extends GuiContainer(new container.Robot(playerInventory, robot)) with Buffer {
   xSize = 256
@@ -70,14 +70,14 @@ class Robot(playerInventory: InventoryPlayer, val robot: tileentity.Robot) exten
 
   override def drawSlotInventory(slot: Slot) {
     RenderState.makeItBlend()
-    GL11.glDepthMask(false)
     super.drawSlotInventory(slot)
-    GL11.glDepthMask(true)
     GL11.glDisable(GL11.GL_BLEND)
     if (!slot.getHasStack) slot match {
       case component: ComponentSlot if component.tierIcon != null =>
         mc.getTextureManager.bindTexture(TextureMap.locationItemsTexture)
+        GL11.glDisable(GL11.GL_DEPTH_TEST)
         drawTexturedModelRectFromIcon(slot.xDisplayPosition, slot.yDisplayPosition, component.tierIcon, 16, 16)
+        GL11.glEnable(GL11.GL_DEPTH_TEST)
       case _ =>
     }
   }
diff --git a/li/cil/oc/client/gui/Server.scala b/li/cil/oc/client/gui/Server.scala
new file mode 100644
index 000000000..11b375224
--- /dev/null
+++ b/li/cil/oc/client/gui/Server.scala
@@ -0,0 +1,28 @@
+package li.cil.oc.client.gui
+
+import li.cil.oc.Settings
+import li.cil.oc.common.container
+import li.cil.oc.common.inventory.ServerInventory
+import net.minecraft.entity.player.InventoryPlayer
+import net.minecraft.util.{ResourceLocation, StatCollector}
+import org.lwjgl.opengl.GL11
+
+class Server(playerInventory: InventoryPlayer, serverInventory: ServerInventory) extends DynamicGuiContainer(new container.Server(playerInventory, serverInventory)) {
+  protected val serverBackground = new ResourceLocation(Settings.resourceDomain, "textures/gui/server.png")
+
+  override def drawGuiContainerForegroundLayer(mouseX: Int, mouseY: Int) = {
+    super.drawGuiContainerForegroundLayer(mouseX, mouseY)
+    fontRenderer.drawString(
+      StatCollector.translateToLocal(serverInventory.getInvName),
+      8, 6, 0x404040)
+  }
+
+  override def drawGuiContainerBackgroundLayer(dt: Float, mouseX: Int, mouseY: Int) {
+    GL11.glColor3f(1, 1, 1) // Required under Linux.
+    super.drawGuiContainerBackgroundLayer(dt, mouseX, mouseY)
+    mc.renderEngine.bindTexture(serverBackground)
+    drawTexturedModalRect(guiLeft, guiTop, 0, 0, xSize, ySize)
+  }
+
+  override def doesGuiPauseGame = false
+}
\ No newline at end of file
diff --git a/li/cil/oc/common/GuiHandler.scala b/li/cil/oc/common/GuiHandler.scala
index 54a0ce7a8..650b9934c 100644
--- a/li/cil/oc/common/GuiHandler.scala
+++ b/li/cil/oc/common/GuiHandler.scala
@@ -1,6 +1,8 @@
 package li.cil.oc.common
 
 import cpw.mods.fml.common.network.IGuiHandler
+import li.cil.oc.Items
+import li.cil.oc.common.inventory.ServerInventory
 import net.minecraft.entity.player.EntityPlayer
 import net.minecraft.world.World
 
@@ -17,6 +19,12 @@ abstract class GuiHandler extends IGuiHandler {
         new container.Robot(player.inventory, proxy.robot)
       case rack: tileentity.Rack if id == GuiType.Rack.id =>
         new container.Rack(player.inventory, rack)
-      case _ => null
+      case _ => Items.multi.subItem(player.getCurrentEquippedItem) match {
+        case Some(server: item.Server) if id == GuiType.Server.id =>
+          new container.Server(player.inventory, new ServerInventory(player))
+        case Some(terminal: item.Terminal) if id == GuiType.Terminal.id =>
+          null // TODO
+        case _ => null
+      }
     }
 }
\ No newline at end of file
diff --git a/li/cil/oc/common/container/Server.scala b/li/cil/oc/common/container/Server.scala
new file mode 100644
index 000000000..3ed7fb800
--- /dev/null
+++ b/li/cil/oc/common/container/Server.scala
@@ -0,0 +1,29 @@
+package li.cil.oc.common.container
+
+import li.cil.oc.api
+import li.cil.oc.common.inventory.ServerInventory
+import net.minecraft.entity.player.{EntityPlayer, InventoryPlayer}
+
+class Server(playerInventory: InventoryPlayer, serverInventory: ServerInventory) extends Player(playerInventory, serverInventory) {
+  for (i <- 0 to 1) {
+    addSlotToContainer(76, 7 + i * slotSize, api.driver.Slot.Card, 1)
+  }
+
+  for (i <- 0 to 3) {
+    addSlotToContainer(100, 7 + i * slotSize, api.driver.Slot.Processor)
+  }
+
+  for (i <- 0 to 3) {
+    addSlotToContainer(124, 7 + i * slotSize, api.driver.Slot.Memory, 2)
+  }
+
+  for (i <- 0 to 3) {
+    addSlotToContainer(148, 7 + i * slotSize, api.driver.Slot.HardDiskDrive, 2)
+  }
+
+  // Show the player's inventory.
+  addPlayerInventorySlots(8, 84)
+
+  override def canInteractWith(player: EntityPlayer) = player == playerInventory.player
+}
+
diff --git a/li/cil/oc/common/inventory/ItemStackInventory.scala b/li/cil/oc/common/inventory/ItemStackInventory.scala
new file mode 100644
index 000000000..3566abd08
--- /dev/null
+++ b/li/cil/oc/common/inventory/ItemStackInventory.scala
@@ -0,0 +1,85 @@
+package li.cil.oc.common.inventory
+
+import li.cil.oc.Settings
+import net.minecraft.entity.player.EntityPlayer
+import net.minecraft.inventory.IInventory
+import net.minecraft.item.ItemStack
+import net.minecraft.nbt.{NBTTagList, NBTTagCompound}
+
+abstract class ItemStackInventory extends IInventory {
+  // The item stack that provides the inventory.
+  def container: ItemStack
+
+  protected val items = Array.fill[Option[ItemStack]](getSizeInventory)(None)
+
+  // Load items from tag.
+  {
+    if (!container.hasTagCompound) {
+      container.setTagCompound(new NBTTagCompound("tag"))
+    }
+    if (container.getTagCompound.hasKey(Settings.namespace + "items")) {
+      val list = container.getTagCompound.getTagList(Settings.namespace + "items")
+      for (i <- 0 until (list.tagCount min items.length)) {
+        val tag = list.tagAt(i).asInstanceOf[NBTTagCompound]
+        if (!tag.hasNoTags) {
+          items(i) = Option(ItemStack.loadItemStackFromNBT(tag))
+        }
+      }
+    }
+  }
+
+  def getStackInSlot(slot: Int) = items(slot).orNull
+
+  def decrStackSize(slot: Int, amount: Int) = items(slot) match {
+    case Some(stack) if stack.stackSize - amount < 1 =>
+      setInventorySlotContents(slot, null)
+      stack
+    case Some(stack) =>
+      val result = stack.splitStack(amount)
+      onInventoryChanged()
+      result
+    case _ => null
+  }
+
+  def getStackInSlotOnClosing(slot: Int) = null
+
+  def setInventorySlotContents(slot: Int, stack: ItemStack) = {
+    if (stack == null || stack.stackSize < 1) {
+      items(slot) = None
+    }
+    else {
+      items(slot) = Some(stack)
+    }
+    if (stack != null && stack.stackSize > getInventoryStackLimit) {
+      stack.stackSize = getInventoryStackLimit
+    }
+
+    onInventoryChanged()
+  }
+
+  def isInvNameLocalized = false
+
+  def getInventoryStackLimit = 64
+
+  def onInventoryChanged() {
+    // Write items back to tag.
+    val list = new NBTTagList()
+    for (i <- 0 until items.length) {
+      val tag = new NBTTagCompound()
+      items(i) match {
+        case Some(stack) => stack.writeToNBT(tag)
+        case _ =>
+      }
+      list.appendTag(tag)
+    }
+    container.getTagCompound.setTag(Settings.namespace + "items", list)
+  }
+
+  def isUseableByPlayer(player: EntityPlayer) = true
+
+  def openChest() {}
+
+  def closeChest() {}
+
+  def isItemValidForSlot(slot: Int, stack: ItemStack) = true
+}
diff --git a/li/cil/oc/common/inventory/ServerInventory.scala b/li/cil/oc/common/inventory/ServerInventory.scala
new file mode 100644
index 000000000..8a4378cf2
--- /dev/null
+++ b/li/cil/oc/common/inventory/ServerInventory.scala
@@ -0,0 +1,27 @@
+package li.cil.oc.common.inventory
+
+import li.cil.oc.Settings
+import li.cil.oc.api.driver.Slot
+import li.cil.oc.server.driver.Registry
+import net.minecraft.entity.player.EntityPlayer
+import net.minecraft.item.ItemStack
+
+class ServerInventory(player: EntityPlayer) extends ItemStackInventory {
+  def container = player.getCurrentEquippedItem
+
+  def getSizeInventory = 14
+
+  def getInvName = Settings.namespace + "container.Server"
+
+  override def getInventoryStackLimit = 1
+
+  override def isItemValidForSlot(slot: Int, stack: ItemStack) =
+    (slot, Registry.itemDriverFor(stack)) match {
+      case (_, None) => false // Invalid item.
+      case (0 | 1, Some(driver)) => driver.slot(stack) == Slot.Card && driver.tier(stack) <= 1
+      case (2 | 3 | 4 | 5, Some(driver)) => driver.slot(stack) == Slot.Processor && driver.tier(stack) <= 2
+      case (6 | 7 | 8 | 9, Some(driver)) => driver.slot(stack) == Slot.Memory && driver.tier(stack) <= 2
+      case (10 | 11 | 12 | 13, Some(driver)) => driver.slot(stack) == Slot.HardDiskDrive && driver.tier(stack) <= 2
+      case _ => false // Invalid slot.
+    }
+}
diff --git a/li/cil/oc/common/item/Server.scala b/li/cil/oc/common/item/Server.scala
index ed73bf0f8..794ae2c2c 100644
--- a/li/cil/oc/common/item/Server.scala
+++ b/li/cil/oc/common/item/Server.scala
@@ -1,5 +1,21 @@
 package li.cil.oc.common.item
 
+import li.cil.oc.OpenComputers
+import li.cil.oc.common.GuiType
+import net.minecraft.entity.player.EntityPlayer
+import net.minecraft.item.ItemStack
+import net.minecraft.world.World
+
 class Server(val parent: Delegator) extends Delegate {
   val unlocalizedName = "Server"
+
+  override def onItemRightClick(stack: ItemStack, world: World, player: EntityPlayer) = {
+    if (!player.isSneaking) {
+      if (!world.isRemote) {
+        player.openGui(OpenComputers, GuiType.Server.id, world, 0, 0, 0)
+      }
+      player.swingItem()
+    }
+    stack
+  }
 }