iMac 21.5″, A1311, EMC 2389, Mid 2010. Features a dual core 3.06GHz Intel i3 processor. 8GB memory, 500GB hard drive and a DVD-RW.
Standard are a iSight camera, built in stereo speakers, four USB 2.0 ports, a Firewire 800 port, AirPort Extreme, Gigabit Ethernet, an SDXC card slot as well as a Mini DisplayPort.
Currently running OS 10.13, High Sierra, but capable of running from OS 10.6 Snow Leopard to OS 10.13 High Sierra.
Looks and works great! Comes with a power cable.