The external multi-bay tower series are designed specially for storage applications. The wide variety of the tower with hard drive cages is able to easily max the hard drive capacity up to 5 bays for storing mass data. Optional 120mm cooling fan can be added to enhance the ventilation inside. The external NAS tower chassis with solid construction is a cost-effective and flexible solution for your critical data storage.- Sleek Front Panel with Power On Button.- 5x 3.5" Trayless Hotswap Bays.- 4mm Aluminum Front Panel.- Support 6.0Gb/s SATA/SAS HDDs.- Compatible with Flex Power Supply.- Heavy Duty SECC Construction.- Support Standard I/O Slot.- Support mini-ITX Motherboard.