National Sales LLC sells computers with upgraded configurations. If the computer has modifications (listed above), 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 no modifications are listed, the item is unopened and untested. Defects & blemishes are significantly reduced by our in depth inspection & testing.Technical Specifications:Display: 15.6″ LED-backlit display, 1366 x 768 HD resolution Processor: Intel Celeron N4100 1.1GHz Up to 2.4GHz or Intel Pentium N5000 processor; Quad-Core; 1.1GHz Up to 2.7GHz Storage Drive: Choose your SSD, up to 128GB/256GB/512GB/1TB SSD or 1TB/2TB HDD for more storage. Memory RAM: Choose your RAM, up to 4GB/8GB/16GB DDR4 Webcam: Built-in webcamKeyboard: NOT Backlit KeyboardMulti-format Digital Media Reader: SD card readerOperating System: Windows 10 Home 64-bitBattery: 2-cell lithium batteryPorts: 1 x USB 3.01 x USB 2.01 x HDMI1 x Headphone/microphone combo jackDimensions (WxHxD): 14.9 x 10.2 x 0.9 inNote: DVD-RW.