Asus B551LG-XB51 15.6 inch Intel Core i5-4310U 2.0GHz- 8GB DDR3L- 128GB SSD + TPM- USB3.0- Windows 7 Professional and Windows 8.1 Notebook (Black)

Specifications Mfr Part Number: B551LG-XB51 Processor: Intel Core i5-4310U Processor (2.0GHz Clock Speed, 3.0GHz Max Turbo, 3MB L3 Cache, Dual-Core) Memory: 8GB DDR3L-1600 SDRAM, Max Capacity of 16GB Display: 15.6" Full HD (1920 x 1080) Matte Display Graphics Module: NVIDIA GeForce GTX 840M w/ 1GB DDR3 Video Memory Hard Drive: 128GB SSD + TPM Optical Storage: N/A Audio: Integrated Sound Card w/ SonicMaster, Built-in Speakers and Microphone Connectivity: Integrated Gigabit Ethernet; 802.11a/c Wireless LAN; Bluetooth 4.0 Interface: 3x USB 3.0 Ports, 1x USB 2.0 Port, 1x VGA Port, 1x RJ45 LAN Port, 1x Mini DisplayPort, 1x Headphone-out & Audio-in Combo Jack Card Reader: 3-in-1 Card Reader, Supports SD/MMC/SDXC Camera: Built-in HD Webcam Battery Pack: 4-Cell Battery, 45WHrs +23WHrs 3-Cell Battery Pack in ODD Bay AC Adapter: Output: 19V DC, 3.42A, 65W Input: 100-240V AC, 50/60Hz Universal Color: Black Dimensions (WxDxH): 383.0 x 259.0 x 26.0 mm Weight: 5.5 lbs Operating System: Windows 8.1 64-bit w/ Windows 7 Pro Downgrade (preloaded)