SunPCi is a series of single-board computers with a connector that effectively allows a PC motherboard to be fitted in Sun Microsystems SPARC-based workstations based on the PCI architecture adding the capability for the workstation to act as a 'IBM PC compatible' computer. The Sun PCi cards included an x86 processor, RAM, expansion ports, and an onboard graphics controller, allowing a complete Wintel operating environment on a Solaris system. The SunPCi software running on Solaris emulates the disk drives that contain the PC filesystem. The PC software running on the embedded hardware is displayed in an X window on the host desktop; there is also a connector on the edge of the board that can optionally be used to connect a PC monitor.