Cisco VICs are PCIe-compliant interfaces that support up to 256 PCIe devices with dynamically configured type (NIC or HBA), identity (MAC address or worldwide name [WWN]), fabric failover policy, bandwidth, and QoS policy settings. With Cisco VICs, server configuration—including I/O configuration—becomes configurable on demand, making servers stateless resources that can be deployed to meet any workload need at any time, without any physical reconfiguration or recabling required. Cisco VICs support up to 80 Gbps of connectivity and are available in multiple form factors: • mLOM: These Cisco VICs can be ordered preinstalled in Cisco UCS M3 and M4 blade servers, occupying a dedicated slot for the device . If more than 40 Gbps of bandwidth is needed, a port expander card can be installed in the server’s mezzanine slot to give the card access to an additional 40 Gbps of bandwidth. When Cisco UCS 2304XP Fabric Extenders are installed in the blade chassis, the Cisco UCS VIC 1340 detects the availability of 40 Gigabit Ethernet and disables the port channel for greater efficiency. • Mezzanine: Standard Cisco VICs can be installed in any blade server’s mezzanine slot: one for half-width blade servers, and up to two for full-width blade servers. Each Cisco VIC supports up to 80 Gbps, for a total of up to 320 Gbps of aggregate bandwidth for double-width, double-height servers such as the Cisco UCS C460 M4 Rack Server. • PCIe: PCIe form-factor cards can be installed in Cisco rack servers. Cisco VICs are required when you integrate these servers into Cisco UCS because they have the circuitry to pass the unified fabric’s management traffic to the server’s management network, enabling single-wire, unified management of rack servers.