Apple MacBook Pro 13.3-Inch Laptop with Retina Display Intel Core i5 2.7GHz, 512GB Flash Storage, 16GB DDR3 Memory (VERSION) 2.7 GHz dual-core Intel Core i5 processor (Turbo Boost up to 3.1 GHz) with 3MB shared L3 cache 16GB 1866 MHz DDR3 RAM Memory, 512GB PCIe-based Flash Storage, Bluetooth 4.0/ 802.11ac Wi-Fi 13.3-inch IPS Retina Display, 2560-by-1600 resolution, Up to 10 Hours of Battery Life Intel Iris Graphics 6100, two Thunderbolt 2 ports, two USB 3 ports, an HDMI port, an SDXC card slot OS X Yosemite