The SANbox 5602 16-Port 4GB Fabric Switch with 16 SPF's from Q-Logic lets you start small and then scale with your company's needs using state of the art 10Gb Fibre Channel stacking technology typically found only in high end director products. As proven in the Ethernet world, stackable architectures cut costs and increase stability by providing a dedicated, highly expandable transport for aggregate ISL traffic eliminating the disruption, port waste and management hassles associated with using regular device ports for inter switch links. It's like having the performance and hands off convenience of an expensive chassis switch without the cost overhead of chassis.