Acer Aspire E5-571-5552 16-Inch Notebook (1.70GHz Intel Core i5 4210U 4GB DDR3L Memory 500GB HDD Intel HD Graphics 4400 Windows 8.1) Intel Core i5 4210U (1.70GHz), 3MB CPU L3 Cache, Intel HD Graphics 4400, Windows 8.1, Dedicated Numeric Keypad, Non-backlit keyboard 15.6" LED backlight & Acer CineCrystal Technology, Active Matrix TFT Color LCD, 1366 x 768 Resolution, 802.11b/g/n Wireless LAN 4GB DDR3L Memory, Max Memory Supported: 16GB, Total 2 Memory Slot, Secure Digital (SD) card reader 500GB 5400rmp SATA Hard Drive, No Optical Drive, HD Webcam (1280 x 720) Bluetooth 4.0, 1 x HDMI, 2 x USB 2.0, 1 x USB 3.0, High Definition Audio Support, Built-in Digital Microphone, MS-Sound Compatible