Apple iMac 27" Desktop with Retina 5K display - 3.3 GHz Intel Core i5, 1TB Hard Drive, 16GB 1600MHz DDR3 SDRAM, AMD Radeon M290 GPU 2GB GDDR5, Mac OS X Yosemite, (Mid 2015) 3.3 GHz Intel Core i5 Quad-Core 4th-Gen Haswell , AMD Radeon M290 with 2 GB GDDR5 SDRAM Dedicated 27-inch (diagonal) Retina 5K display with IPS technology, 5120by2880 resolution with support for millions of colors 16GB of 1600MHz DDR3 memory, Mac OS X Yosemite, FaceTime HD camera 1TB 7200 rpm Hard Drive, 802.11ac Wi-Fi, Bluetooth 4.0, Two Thunderbolt ports, Four USB 3 ports (compatible with USB 2) What's in the Box: Apple 27" iMac Desktop Computer, Apple Wireless Keyboard, Magic Mouse, Power Cord