ThinkPad X200 UltraBase - Expand the function of your ThinkPad X200 Series ultraportable or tablet by snapping it into the ThinkPad X200 UltraBase. This simple, quick attach solution adds a wide array of expansion capabilities but is small enough to carry anywhere. A single UltraBase now works with both ThinkPad ultraportable and tablet notebooks. NOTE: This item is being discontinued by Supplier Diamond. Once the on-hand quantity is depleted; the item will no longer be available from this supplier.