If the computer has modifications based on the basic configuration, then the manufacturer box is opened for it to be tested and inspected and to install the upgrades to achieve the specifications as advertised. If there is no modifications, the item is unopened and untested. Defects & blemishes are significantly Blackuced by our in depth inspection & testing, Professional installation service included. Tec Specs: 1. Yoga Convertible 2-in-1 ，360° flip-and-fold design 2. 16GB system memory for intense multitasking and gaming 3. 512GB M. 2 solid-state drive for dependable, spacious file storage Operating System: Windows 10 Home 64-Bit English Display: 15. 6" Full HD (1920 x 1080) IPS Touchscreen Energy-efficient LED Backlight Display Keyboard: Backlit Keyboard Security Features: Fingerprint Reader Processor: 8th Gen Intel Core i5-8250U Mobile Processor Quad-core 6MB Cache Memory: 16GB DDR4 Hard Drive: 512GB SSD Hard Driver Ports: 1 X Thunderbolt 3, 1 X USB 3. 1 Type-C, 2 X USB 3. 0 Type-A, 1 X HDMI, Stereo Speakers, Headphone/microphone Combo Jack Video: Intel UHD Graphics 620 Audio: Stereo Speakers Wireless Connectivity: 802. 11ac + Bluetooth Webcam: HD Webcam Battery: 3-Cell Color: Iron Gray Dimensions(inches): 0. 7" H x 14. 2" W x 9. 8" D Weight: 4. 17 Lbs