Lenovo Z50-70 Laptop -  Intel Core i7-4510U up to 3.1GHz 8GB DDR3 RAM, 500GB HDD, 15.6" FHD 1920x1080 Display, USB 3.0, Bluetooth, 802.11ac WiFi, Windows 8.1/10 4th Generation Intel Core i7-4510U (2.00GHz 1600 MHz 4MB up to 3.1GHz Turbo Frequency, 8.0GB PC3L-12800 DDR3L, 500GB 5400 RPM SDRAM 1600 MHz Operating System - Windows 8.1 64-bit English, eligible for Windows 10 Home 64-bit free upgrade HD Webcam, 1 USB 3.0, 2 USB 2.0, Intel HD Graphics 4400, Bluetooth 4.0, LAN, WLAN 802.11ac WiFi, HDMI, SD Card Reader Up to 5 Hours Battery life. Up to 5 Hours Battery life.