Cisco Unified Computing System

[4] The computing component of the UCS is available in two versions: the B-series (a powered chassis and full and/or half slot blade servers), and the C-series for 19-inch racks (that can be used with fabric interconnects).

Cisco UCS supports several hypervisors including VMware ESXi, Microsoft Hyper-V and Citrix Systems' Xen server.

In 2017 Cisco announced a partnership with Docker to include its enterprise software in UCS products to directly provide operating-system-level virtualization (containerization).

The fabric interconnects are derived from the Nexus 5500 and 9300 series switch families and run NX-OS as well as UCS Manager software.

[4] By 2012, analysts noticed that Fibre Channel vendors such as Brocade Communications Systems had already lost market share to Cisco.

Cisco offers a UCSM Platform Emulator, where the full logical configuration of a server can be created from the user interface or the API methods, and later applied to the physical hardware.