High availability: Redundant, hot swappable, removable power supplies and cooling units. Value: Ports on demand for instant scalability and "pay-as–you-grow" value. High performance: Industry-leading 4 Gbps performance for strategic, data- intensive applications. Stable: Provides investment protection as the device is forward and backward compatible with the entire family of 1 Gb, 2, or 4Gb B-Series switches and directors. Adaptive: Provides 4 Gbps technology with auto-sensing capabilities to recognize 1,2, or 4 Gbps devices. Ease of use: Easily integrates into installed base of B-series SANs for  investment protection. Adaptive: Auto sensing 1, 2, or 4 Gbps transfer, using ISL virtual channels to  provide non-blocking data transfer and maximum application data throughput. Management: Utilizes current B-series management and monitoring software tools to  optimize operational efficiencies and maximize SAN investment. Increased Consolidation: Simplifies enterprise SAN deployment by providing a high  port count in a single-domain switch for exceptional scalability, performance and reliability. Scalability: Delivers 32, 48, or 64-ports in a 2U enclosure.