The Allied Telesis x900 Series is one of our most advanced series of switches and is unmatched in performance, flexibility and reliability. This series provides fine service provisioning granularity, high availability, and advanced QoS. All x900 switches incorporate a switching core that yields wirespeed IPv4 and IPv6 routing and most switches feature robust hardware with dual hot swappable power supplies. The Allied Telesis x900 Series of Layer 3+ switches feature high speed 60Gbps expansion bays, providing a level of port flexibility and application versatility unmatched by any other 1RU Gigabit Ethernet switch on the market.