Apple MacBook Pro ME867LL/A 13.3-Inch Laptop with Retina Display (Intel Core i7, DDR3L RAM, 512GB SSD, Mac OS X Mavericks)) 2.8GHz dual-core Intel Core i7 (Turbo Boost up to 3.3GHz) with 4MB shared L3 cache 8GB of 1600MHz DDR3L onboard memory, 512GB flash storage. Intel Iris Graphics, Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays, both at millions of colors Two USB 3 ports (up to 5 Gbps), Two Thunderbolt 2 ports (up to 20 Gbps), MagSafe 2 power port Retina display: 13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 resolution at 227 pixels per inch with support for millions of colors