FingerTec always makes things easy for you! The latest accessory we provide is a box to contain AdapTec or a power supply and a backup battery. The box is made of metal; it comes in flat-pack for do-it-yourself (DIY) assembly for easier packing and it saves a lot of space in shipping. We will be giving away 1 free unit of this box with any purchase of 10 units of AC900. This promo is valid until end of June!