The iMac “Core 2 Duo” 3.06 21.5-Inch Aluminum features a 3.06 GHz Intel “Core 2 Duo” processor (E7600), with two independent processor “cores” on a single silicon chip, a 3 MB shared level 2 cache, a 1066 MHz system bus, 4 GB of RAM (1066 MHz PC3-8500 DDR3 SDRAM), a 500 GB (7200 RPM) hard drive, a vertically-mounted slot-loading DVD±R DL “SuperDrive”, and NVIDIA GeForce 9400M graphics with 256 MB of shared memory or ATI Radeon HD 4670 graphics with 256 MB of dedicated GDDR3 memory.

It also has a built-in iSight video camera and built-in stereo speakers underneath the 21.5" glossy 16:9 LED-backlit TFT Active Matrix LCD (1920×1080 native) display “with IPS technology”.

Connectivity includes four USB 2.0 ports, a Firewire “800” port, built-in AirPort Extreme, and Gigabit Ethernet, as well as a Mini DisplayPort, which supports an external display up to 30" (2560×1600).

This Aluminum iMac model have an “edge-to-edge” glass design and a “seamless all aluminum enclosure”

Externally, the displays are enhanced with LED-backlighting and “IPS technology” for improved quality, and internally, each has four RAM slots supporting up to 16 GB of RAM (rather than two slots and 8 GB of RAM for earlier models). This model also includes an SD Card slot and redesigned speakers that promise “louder, clearer sound with better bass response and less distortion”.

This iMac models will ship with a FREE compact aluminum Apple Wireless Keyboard and a Wireless “Mighty Mouse”. Unit has been Certified Preloved® by Mac Warehouse.The Operating system has been upgraded to MAC OSX 10.9 Mavericks.