Apple Mac Mini - 2.5GHz Dual-Core Intel Core i5, 16GB Memory, 500GB Hard Drive, Intel HD Graphics 4000, Thunderbolt, HDMI port, Wi-Fi, Bluetooth 4.0, Latest OSX macOS Sierra 10.12 2.5GHz Intel Core i5 Dual-Core(Ivy Bridge) 500GB Serial ATA 5400rpm Hard Drive, Intel HD Graphics 4000 16GB of 1600 MHz DDR3 SDRAM (PC3-12800) Memory Thunderbolt, USB 3.0, HDMI Ports, SDXC Card Slot, Gigabit Ethernet Port, 802.11ac/a/b/g/n Wi-Fi, Bluetooth 4.0 Latest OSX macOS Sierra 10.12 (Monitor not included, picture provided for size comparison, No keyboard or mouse or optical drive included)