The 15.4" MacBook Pro Notebook Computer with Retina Display & Force Touch Trackpad is a powerful notebook computer with an innovative, ultrathin, ultraportable aluminum unibody design. The system is powered by a quad-core 4th generation Crystalwell 2.5 GHz Intel Core i7 processor. The 4th-gen Crystalwell processor uses low voltage for improved battery life without sacrificing performance. The MacBook Pro with Retina Display also has 16GB of onboard 1600 MHz DDR3L RAM, 512GB of PCIe-based flash storage and an SDXC media card slot. You'll be able to connect to the Internet with high-speed 802.11ac Wi-Fi. The MacBook Pro also supports a/b/g/n Wi-Fi networks as well. The MacBook Pro also features built-in Bluetooth 4.0, which allows you to connect wireless headphones, keyboard, mice and other compatible peripherals without a hassle. The widescreen, LED-backlit IPS screen has a glossy finish and a native resolution of 2880 x 1800.